List of All Classical-physics Formulas

All Classical-physics Formulas List

Force Formula

Force:

force

Mass:

mass

Acceleration:

acceleration


Where,
m = Mass,
a = Acceleration

Related Calculator:

Work


Work:


Force:


Distance:




Where,
W =Work
F = Force
D = Distance

Related Calculator:


Total Work Done


Total Work:


where,
WT = Total Work,
m =Mass,
vi =Initial Velocity,
vf = Final Velocity.

Related Calculator:

Power with Work

Power with Work:

Power:


Work:



Time:



where,
P = Power,
W = Work,
T = Time

Related Calculator:

Power with Displacement

Power with Displacement

Power:


Force:


Displacement:


Time:


where,
P = Power,
F = Force,
D = Displacement,
T = Time.

Related Calculator:

Power with Velocity


Power with Velocity:

Power:


Force:


Velocity:


where,
P = Power,
F = Force,
V = Velocity

Related Calculator:

Kinetic Energy

Kinetic Energy:

Ek = 1/2 (mv2)

Mass:

m = Ek / 1/2 (v2)

Velocity:




Where,
m = Mass,
v = Velocity.

Related Calculator:

Potential Energy

Potential Energy:

PE = m x g x h

Mass:

m = PE / (g x h)

Acceleration of Gravity:

g = PE / (m x h)

Height:

h = PE / (m x g)


Where,
m = Mass,
g = Acceleration of Gravity
h = Height
Gravitational Acceleration of the earth is 9.8 m/sec2.

Related Calculator:

Centripetal (Centrifugal) Acceleration


Centripetal(Centrifugal) Acceleration:

acc

Radius:

radius

Velocity:

velocity
where,
r = Circular Radius,
v =Velocity

Related Calculator:

Concave Mirror Magnification

Formula:

M = h i / h o
magnification


Where,
M = Magnification
hi = Image Height
ho = Object Height

Related Calculator:

Centripetal (Centrifugal) Force

Formula

F=mv2/r
r=mv2/F
v=√(Fr/m)
m=Fr/v2


Where,
F=Force
m= Mass
r= Circular Radius
v= Velocity

Related Calculator:

Circular Velocity


Circular Velocity :

Circular Velocity:


Radius


Time Period:


where,
r = Circular Radius,
T =Time Period.

Related Calculator:

Velocity


Velocity from Equation for Constant Acceleration:

Velocity:

velocity

Initial Velocity:

acc

Acceleration:

acce

Time:

time
where,
v = Velocity,
v0 = Initial Velocity
a = Acceleration,
t = Time.

Related Calculator:

Average Velocity

Average Velocity from Equation for Constant Acceleration:

Average Velocity:

va = ½ (v0 + v)

Initial Velocity:

v0 = 2xva - v

Velocity:

v = 2xva - v0

where,
v0 = Initial Velocity
v = Velocity.

Related Calculator:

Displacement or Distance


Average Velocity from Equation for Constant Acceleration:


Displacement or Distance:

displacement

Average Velocity:

avg

Time:

time
where,
va = Average Velocity
t = Time.

Related Calculator:

Kinetic Friction

Kinetic Friction:


Kinetic Friction Coefficient:


Normal Force:


where,
μk = Kinetic Friction Coefficient,
N = Normal Force.

Related Calculator:

Static Friction

Static Friction:


Static Friction Coefficient:


Normal Force:



where,
μs = Static Friction Coefficient,
N = Normal Force.

Related Calculator:

Newton's Law of Gravitation

Newton's Law of Gravity:

Gravitational Force:


Mass of Object 1:


Mass of Object 2:


Distance Between the Objects:




Where,
G = Universal Gravitational Constant = 6.6726 x 10-11N-m2/kg2
m1 =Mass of Object 1
m2 =Mass of Object 2
r = Distance Between the Objects.

Related Calculator:

Kepler's Third Law

Kepler's Third Law:

Satellite Orbit Period:


Satellite Mean Orbital Radius:


Planet Mass:


where,
G = Universal Gravitational Constant = 6.6726 x 10-11N-m2/kg2
r = Satellite Mean Orbital Radius
M =Planet Mass

Related Calculator:

Acceleration due to Gravity


Gravitational Acceleration:


Planet Mass:


Radius from Planet Center:


where,
G = Universal Gravitational Constant = 6.6726 x 10-11N-m2/kg2
M = Planet Mass
r = Radius from Planet Center

Related Calculator:

Escape Velocity


Escape Velocity:


Planet Mass:


Planet Radius:


where,
G = Universal Gravitational Constant = 6.6726 x 10-11N-m2/kg2
M = Planet Mass
R = Planet Radius

Related Calculator:

Hooke's Law


Hooke's Law:


Force:

hookes

Spring Force Constant:

hookes

Distance from Equilibrium:

hookes

Spring Equilibrium Position:

hookes
where,
Fx = Force,
k = Spring Force Constant,
x =Distance from Equilibrium,
x0 = Spring Equilibrium Position.

Related Calculator:

Elastic Potential Energy


Elastic Potential Energy:


Spring Potential Energy:

energy

Spring Force Constant:

force

Spring Stretch Length:

length
where,
U = Spring Potential Energy,
k = Spring Force Constant,
x = Spring Stretch Length.

Related Calculator:

Newton's Second Law of Motion

Newton's Second Law of Motion Formulae:

Net Force:


Mass:


Acceleration:



where,
Fnet = Net Force
m = Mass
a = Acceleration.

Related Calculator:

Impulse with Velocity


Impulse with Velocity:


Impulse:

impulse

Mass:

impulse

Velocity Change:

impulse
where,
I = Impulse,
m = Mass,
Δv = Velocity Change.

Related Calculator:

Impulse with Time


Impulse with Time:


Impulse:


Force:


Time Change:


where,
I = Impulse,
F = Force,
ΔT = Time Change.

Related Calculator:

Momentum with Velocity


Momentum with Velocity:


Momentum:

momentum

Mass:

momentum

Velocity Change:

momentum
where,
ΔM = Momentum Change,
m = Mass,
Δv = Velocity Change,

Related Calculator:

Momentum with Time


Momentum with Time:


Momentum:

momentum

Force:

momentum

Time Change:

momentum
where,
ΔM = Momentum Change,
F = Force,
ΔT = Time Change.

Related Calculator:

Moment Force, Lever Arm Length


Moment:


Moment:

moment

Force:

force

Lever Arm Length:

lever
where,
M = Moment,
F = Force,
l = Lever Arm Length.

Related Calculator:

Simple Pendulum


Simple Pendulum:

Period:


Length:


Acceleration of Gravity:



Where,
T = Period
L = Length
g = Acceleration of Gravity

Related Calculator:

Physical Pendulum


Physical Pendulum:


Period:


Center of Mass or Moment of Inertia:


Mass:


Acceleration of Gravity:


Distance from Center of Mass to Pivot:


where,
T = Period,
I = Center of Mass or Moment of Inertia,
M = Mass,
g = Acceleration of Gravity,
D = Distance from Center of Mass to Pivot.

Related Calculator:

Torque


Torque:


Torque:


Force:


Distance or Length:


where,
T =Torque,
F =Force,
D =Distance or Length.

Related Calculator:

Density


Density:


Density:

density

Mass:

mass

Volume:

volume
where,
d = Density,
m = Mass,
v = Volume

Related Calculator:

Einstein Mass Energy


Einstein Mass Energy:


Energy:

energy

Mass:

mass

Speed of Light in a Vacuum:

speed
where,
E = Energy,
m = Mass,
c = Speed of Light in a Vacuum.

Related Calculator:

Stress


Formula:

Stress:
Stress Formula
Force:
Force Formula using Stress
Area:
Area Formula using Stress

Where,
S = Stress
F = Force
A = Area

Related Calculator:

Strain


Strain:


Strain:


Change in Length:


Length:


where,
S = Strain,
Lc = Change in Length,
L = Length

Related Calculator:

Youngs Modulus

Young's Modulus:


Stress:


Strain:




Where,
Y = Young's Modulus,
S = Stress,
St = Strain.

Related Calculator:

Ups Power Requirement

Formula Used :


Minimum UPS Capability = sysvoltage × ( addition of all device amps value ) + 1.4 × ( addition of all device watts value )


Where,
sysvoltage = System (AC) Voltage

Related Calculator:

Projectile Motion for Vertical Velocity


Projectile Motion for Vertical Velocity:


Vertical Velocity at Time:


Initial Vertical Velocity:


Acceleration of Gravity:


Time:


where,
Vy = Vertical Velocity at Time
Vy0 = Initial Vertical Velocity
g = Acceleration of Gravity
t = Time.

Related Calculator:

Projectile Motion for Vertical Displacement


Projectile Motion for Vertical Displacement:


Vertical Displacement at Time:


Initial Vertical Velocity:


Acceleration of Gravity:


Time:


where,
Δy = Vertical Displacement at Time
Vy0 = Initial Vertical Velocity
g = Acceleration of Gravity
t = Time.

Related Calculator:

Projectile Motion for Horizontal Displacement


Projectile Motion for Horizontal Displacement:


Horizontal Displacement at Time:


Initial Horizontal Velocity:


Time:


where,
Δx = Horizontal Displacement at Time
Vx0 = Initial Horizontal Velocity
t = Time.

Related Calculator:

Projectile Motion for Range


Projectile Motion for Range:


Range:


Initial Velocity:


Acceleration of Gravity:


where,
R = Range
V0 = Initial Velocity
g = Acceleration of Gravity.

Related Calculator:

Doppler Effect Wavelength Front

Doppler Effect Wavelength Front:

Wavelength in Front of a Moving Source:

wavelength

Wave Velocity:

wavelength

Source Velocity:

wavelength

Source Frequency:

wavelength where, λf = Wavelength in Front of a Moving Source v = Wave Velocity us = Source Velocity f0 = Source Frequency.

Related Calculator:

Doppler Effect Wavelength Behind

Doppler Effect Wavelength Behind:

Wavelength in Behind of a Moving Source:
wavelength Wave Velocity:
wavelength Source Velocity:
wavelength Source Frequency:
wavelength where, λf = Wavelength in Behind of a Moving Source v = Wave Velocity us =Source Velocity f0 = Source Frequency.

Related Calculator:

Doppler Effect Approaching Source

Doppler Effect Approaching Source:

New Frequency of Approaching Source:

Wave Velocity:

Wavelength in Front of Source:

where, f =New Frequency of Approaching Source v =Wave Velocity λf = Wavelength in Front of Source.

Related Calculator:

Doppler Effect Receding Source

Doppler Effect Receding Source:

New Frequency of Receding Source:

source

Wave Velocity:

source

Wavelength Behind Source:

source where, f' = New Frequency of Receding Source v = Wave Velocity λb = Wavelength Behind Source.

Related Calculator:

Doppler Effect Approaching Receiver

Doppler Effect Approaching Receiver:

New Frequency of Approaching Receiver:

receiver

Source Frequency:

sf

Receiver Velocity:

rv

Wave Velocity:

wv where, f' = New Frequency of Approaching Receiver f0 = Source Frequency ur = Receiver Velocity v = Wave Velocity.

Related Calculator:

Doppler Effect Receding Receiver

Doppler Effect Receding Receiver:

New Frequency of Receding Receiver:

receiver

Source Frequency:

receiver

Receiver Velocity:

receiver

Wave Velocity:

receiver where, f' = New Frequency of Receding Receiver f0 = Source Frequency ur = Receiver Velocity v = Wave Velocity.

Related Calculator:

Wood Density

Formula:

Density = Mass / Volume Wood varies considerably in weight per constant volume on a regional level and at the local level. Compare the densities of several wooden blocks.

Related Calculator:

Differential Pressure Measurement

Formula:

Differential Pressure = (1.59923 x P x d4 x ρ) / W2


Where,
P = Change in Pressure
d = Pipe Diameter
ρ = Fluid Density
W = Mass Flow Rate

Related Calculator:

Sound Pressure Level


Sound Pressure Level:



Sound Pressure:


Reference Pressure:


where,
SPL = Sound Pressure Level,
P = Sound Pressure,
Pref = Reference Pressure.

Related Calculator:

Sound Intensity Level


Sound Intensity Level:


Sound Intensity:


Reference Intensity:


where,
IL = Sound Intensity Level,
I = Sound Intensity,
I0 = Reference Intensity.

Related Calculator:

Sound Power Emitted


Sound Power Emitted:


Power Emitted:


Sound Wave Intensity:


Radius or Distance from Point Source:


where,
PAV = Power Emitted,
I = Sound Wave Intensity,
r = Radius or Distance from Point Source.

Related Calculator:

Sound Wavelength


Sound Wavelength:

Wavelength:


Wave Frequency:


Wave Velocity:


where,
W = Wavelength,
F = Wave Frequency,
V = Wave Velocity.

Related Calculator:

Free Fall

Formula:

h = (1 / 2) * g * t 2
v = g * t
freefall distance

Related Calculator:



Where,
h = Free Fall Distance
g = Gravitational Force
t = Free Fall Time
v = Free Fall Velocity

Related Calculator:

Noise Pollution Level


Noise Pollution Level:



where,
NPL = Noise Pollution Level,
L10 = Level exceeded 10 Percent of Time,
L50 = Level exceeded 50 Percent of Time,
L90 = Level exceeded 90 Percent of Time.

Related Calculator:

Battery Storage Rating

Battery Storage Rating Calculation Formula:


BLT= Capacity of batery / Consumption of the device * 0.70

Related Calculator:

Celsius to Fahrenheit Conversion

Formula:

Tf = ( (Tc * 9) / 5 ) + 32

Where,
Tc = temperature in degrees Celsius,
Tf = temperature in degrees Fahrenheit

Related Calculator:

Fahrenheit to Celsius Conversion

Formula:

Tc = (Tf - 32) * (5 / 9)


Where,
Tc = temperature in degree Celsius,
Tf = temperature in degree Fahrenheit

Related Calculator:

True Porosity

Formula:

True porosity = ( 1 - ( Ga / Gt ) ) x 100 )


Where,
Ga - Apparent Solid Specific Gravity
Gt - True Specific Gravity

Related Calculator:

Souders Brown Equation

Souders Brown Equation:

V = ( K x √((PL - PV) / PV) )


Where,
V = Maximum Allowable Vapor Velocity
K = Vapor Velocity Factor
PL = Liquid Density
PV = Vapor Density

Related Calculator:

Concave Mirror Equation

Formula :


Mirror equation

Where,
f - Focal length,
di - Image distance,
d0 - Object distance.

Related Calculator:

Constant Q Transform

Formula :


δfk = (21 / n)k x δfmin

Where,
δfk - Frequency of k-th filter
n - Number of filters per octave
fmin - Centre frequency of the first bin

Related Calculator:

Horsepower (HP)

Formula:


Rotating Horsepower(HP) = T * (N / 5252) Watt

Where,
T - Torque
N - Speed

Related Calculator:

Moment of Inertia

Formula Used:


Moment of inertia = M * D2

Where,
M = Angular Mass of the Hollow material
D = Distance between axis and rotation

Related Calculator:

Transverse Strength of a Material

Formula Used:


Transverse strength of a Material = ( 8 * P * L) /( 3.14 * d3 )
where,
P - Breaking load
L - Average distance
D - Diameter

Related Calculator:

Standard Surface Factor

Formula:

Standard surface Factor(SSF) = [ (6 / s) * ( w1 / d1 + w2 / d2 + w3 / d3 + w4 / d4)]
where,
s - specific gravity of the material,
w - weight,
d - diameter.

Related Calculator:

Rectangular Tank Capacity

Formula Used:


Capacity (Cubic Inches) = Length x Width x Height
Capacity (Gallons) = capacity (cubic inches) / 231

Related Calculator:

Torsional Pendulum

Formula Used:


t = 2pi sqrt( l I0 / kt)
where,
pi = Constant(3.14)
t = Period [s]
l = Length of the spring[m]
I0 = Moment of Inertia of Bob [kgm2]
kt = Torsional Rigidity [Nm2]

Related Calculator:

Apparent Porosity

Formula:

E = [(S - W) / (S - I)] x 100


Where,
S = Weight of Piece Soaked
W = Weight of Dry Piece
I = Weight of the Piece Soaked and Immersed
E = Apparent porosity

Related Calculator:

Kinematic Viscosity

Formula Used:


v = m/p

Where,
v = Kinematic Viscosity [m2s-1]
m = Dynamic Viscosity [Nsm-2] ρ
= Density [kgm-3]

Related Calculator:

Speed of Sound

Formula Used:


c = sqrt [ γ * (p0/ ρ )]
where,
γ = Ratio of specific heats
P0 = Pressure [Pa]
ρ = Density [kgm-3]

Related Calculator:

Cylindrical Tank Capacity

Formula:

C (Cubic Inches) = ( ( Length × 3.1415 × Diameter2) / 4)
C(Gallons) = C (Cubic Inches) / 231


Where,
C = Capacity

Related Calculator:

Radar Range

Formula:


RMax = ( ( Pt *G* S * Ae ) / ( ( 4 * PI)2 * PMin))

Where,
RMax = Radar Range
Pt = Transmitted Pulse Peak Power
G = Maximum Power Gain of Antenna
Ae = Antenna Aperture
S = Radar Cross Section Area
PMin = Minimum Detectable Signal of Receiver

Related Calculator:

Lensmaker's Equation

Lensmaker's equation:


1/f = (n1/nm-1) * (1/r1-1/r2)

Where,
n1 -Refractive Index of Lens Material
nm -Refractive Index of Ambient Medium
r1 -Radius of Curvature of the First Surface
r2 - Radius of Curvature of the Second Surface

Related Calculator:

Podmore Factor

Formula Used:


Podmore Factor = ( ( Solubility * 100 ) / ( Specific Surface ) )

Related Calculator:

Leaf Spring Rate

Leaf Spring Formula:


k=8Enbt3/3l3
where,
E = Youngs modulus [Nm-2]
n = Number of leaves
b = Width of leaves [m]
t = Thickness of leaves [m]
L = Span [m]

Related Calculator:

Critical Frequency

Formula:

f c = [ sqrt(3)c2/pi*d ] * [ sqrt(ρ/Y) ]
where,
fc = Coincidence Frequency [Hz]
c = Speed of sound in air [ms-1]
d = Thickness of panel [m]
ρ = Density of panel [kgm-3]
Y = Youngs modulus of panel [Nm-2]

Related Calculator:

Brinell Hardness Number (BHN)

Formula:

BHN = 2P / [ πD(D - √(D2-d2)) ]


Where,
P = Load
D = Steel Ball Diameter
d = Depression Diameter

Related Calculator:

Voltage Divider Rule

Formula:

Vout = [ Rb / (Ra+Rb) ] x Vin

where,
Vin = Input Voltage
Vout = Output / Reference Voltage
Ra, Rb = Resistances

Related Calculator:

Electrodialysis (ED)

Formula:


I = ( F * N * Q * E1 ) / ( n * E2 )

Where,
F = Faraday's Constant = 96487 coulombs/g-equivalent
N = Normality of the solution
Q = Flow rate
E1 = Removal Efficiency
E2 = Current Efficiency
n = Number of cells
I = Current Passed through Ion exchange membrane

Related Calculator:

Amount of Substance

Formula Used:


Amount of substance (n)=Mass (m)/Molar mass (M)

Related Calculator:

Angular Acceleration

Formula:

α = T / I


Where,
α = Angular Acceleration
T = Total torque exerted on the body
I = Mass moment of inertia of the body

Related Calculator:

Battery Charging Time

Formula:


MTFC (10% Efficiency Loss) = ((BC / CRC) * 11) / 10
MTFC (20% Efficiency Loss) = ((BC / CRC) * 12)/10
MTFC (30% Efficiency Loss) = ((BC / CRC) * 13)/10
MTFC (40% Efficiency Loss) = ((BC / CRC) * 14)/10
MTFC (No Efficiency Loss) = ((BC / CRC) * 10)/10

Where,
MTFC - Maximum Time To Full Charge
BC - Battery Capacity
CRC - Charge Rate Current

Related Calculator:

Kva (Kilovolt-amps)

Formulas Used:

Three phase = I x V x 1.732 / 1000
One / single phase = I x V / 1000


Where,
I = Amps
V = Volts

Related Calculator:

Newton's Law of Cooling

Formulas Used:


T(t) = Ts + (To - Ts)*e^(-k*t)

Where,
T = Core temperature
t = time
Ts = Surrounding constant temperature
To = Initial temperature of the object
T(t) = Temperature of the object at time

Related Calculator:

Kilograms (kg) to Pounds (lbs) Conversion

Formulas Used:


pounds = kilograms x 2.2 and Kilograms = pounds/2.2

Related Calculator:

Potentiometer

Voltage Divider Formula:


VL=R2RL / ( ( R1RL+R2RL+R1R2)*Vs )

Related Calculator:

Infusion with Calibrated Tubing

Infusion with Calibrated Tubing Formula:


((VO*CAL)/RATE)*CF= ADMVOL
where,
VO = Ordered volume
CAL = IV calibration
RATE = IV Rate
CF = Conversion Factor = (UDO/USDA)
UDO = Units Dose Ordered
USDA = Units Standard Dose Available
ADMVOL = Volume to be Administered

Related Calculator:

RMS Noise Voltage

Formula for the RMS noise voltage:


Vn =sqrt( 4 * kB * T *If *R )
where,
Lu in dBu has the reference voltage V0 = 0.7746
and LV in dBV has the reference voltage V0 = 1 V
Boltzmann constant kB = 1.3806505*10-23 J/K (joule/kelvin); J=W·s
Absolute temperature in kelvin T = 273.15
Bandwidth being considered .If = f2 - f1 = fmax - fmin in Hz; 20 kHz - 20 Hz = 19980 Hz
Resistance of the circuit element R.
R does not mean the universal gas constant!

Related Calculator:

Milling Speed, Feed Rate

Formula:

Mill spindle speed = CS*4/D
Feed rate = chipload*n*speed
where
cs-cutting speed
D - diameter
n = number of flutes on the tool

Related Calculator:

Mass Flow Rate

Formula:

Mass Flow Rate(kg/hour) = (p × v × a)×3600

Where,
p = Density of the Flowing Liquid or Gas(kg/m3)
v = Flow Speed(m/s)
a = Flow Area(m2)

Related Calculator:

Drift Velocity

Drift velocity Formula :


V = I /(n*Q*A)

Where,
V = Drift velocity
I = Flow of current
n = Number of electrons
Q = Charge of electron
A = Cross section of area of wire

Related Calculator:

Gsm of Paper

Weight of Paper Calculation Formula:


Substance in gsm = (Weight of reel in kgs * 100000)/(Length of paper on meter * reel width in cms)

Related Calculator:

Helical Spring Rate

Formula:

K=(G*d)/(8*C3*N)

Where,
K = Spring Rate
d = Wire Diameter
N = Number Of Active Coils
G = Modulus of Rigidity
C =Spring Index

Related Calculator:

Helical Spring Axial Deflection

Formula:

D=((8*F*C3*N)/(G*d))*(1+(0.5/C2))

Where,
D = Spring Axial Deflection
F = Axial Force
d = Wire Diameter
N = Number Of Active Coils
G = Modulus of Rigidity
C = Spring Index

Related Calculator:

Helical Spring Index

Formula:


C = D/d

Where,
C = Spring Index
D = Spring Diameter
d = Wire Diameter

Related Calculator:

D Exponent

Formula


d = [ (log ( R / (60 × N) ) / log ( (12 × W) / (1000 × D) ) ] × ( Pn / Pm )c

Where,
d = d-exponent value
R = Penetration Rate
N = Rotary Speed
W = Weight on Bit
D = Drill Bit Diameter
Pn = Mud Weight Equivalent
Pm = Mud Weight Used
C = Shale Compactibility Coefficient

Related Calculator:

Gravitational Potential Energy

Formula:

Gravitational Potential = −(G×M(kg)) / x(m)


Where
G = 6.674 × 10-11 N(m/kg)²
M = Mass
x = Distance

Related Calculator:

Damped Harmonic Oscillation

Formula Used:


Damped

Related Calculator:

Forced Harmonic Oscillation

Formula Used:


Related Calculator:

Quantum Harmonic Oscillator

Formula Used:


Quantum Harmonic Oscillation

Related Calculator:

Acoustic Suspension Enclosure

Formula Used:

Acoustic suspension enclosure

Related Calculator:

Sound Decibel Distance

Formula Used:


Decible Distance (dB) = 20 × log(d1 ÷ d2)

Where,
d1 - Initial Distance from noise source
d2 - Target Distance from noise source

Related Calculator:

Offset Frequency Speed Error

Formula :


Vm = (fx × Vo) / fo
Verr = Vm - Vo

Where,
Vm = Measured Vehicle Speed
fx = Transmit Frequency
Vo = Traffic Speed
fo = Center Frequency
Verr = Vehicle Speed Error

Related Calculator:

Radar Doppler Frequency Shift

Formula :


Shifted Frequency (Fr) = Ft × ( (1+(v/c)) / (1-(v/c)) )
Doppler Frequency (Fd) = Fr - Ft

Where,
Ft = Original Frequency
v = Target Velocity
c = Speed of Light

Related Calculator:

Motor Top Speed RPM

Formula :


Speed = Total RPM * Total Length
Total RPM (Revolutions per Minute) = RPM value * 60
Total Length = Circle * 0.00001578
Area of Circle = 2 * π * Radius
Radius = Diameter / 2

Related Calculator:

Power

Formula Used:


P=MV

Where,
P = Power
M = Mass
V = Velocity

Related Calculator:

Speedometer Calibration

Formula Used:


Motorcycle Speedometer Calibration (SC) = T *A/24.5*2+R.

Where,
T = Width of the tire.
A = Ratio of height to its corresponding width.
R = Rim diameter.

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Vehicles Angle, Angular Rate

Formula:


Vehicle Angle =tan(distance/range)*180/Math.PI

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One Dimensional Motion with Constant Acceleration

Formula Used:


x(t) = 1/2(at2) + v0t + x0

Where,
x(t) = Position at time t
a = 9.8 m/s2 (Gravity of Earth)
v0 = Velocity at time t=0
x0 = Position at time t=0
t = Time

Related Calculator:

Kirchhoff's Voltage Law (KVL) / Loop Rule

Formula Used:


VT = VR0 + VR1 + VR2 + ... + VRn

Where,
n = Number of Voltages
VT = Total Voltage

Related Calculator:

Helix Curve - Circumference, Length, Unit Rise, Handrail Radius

Formula:

Circumference = 2πr
h = (height of helix x 360) / angle
Length = √h2 + circumference2
Unit Rise = h / circumference
Handrail Radius = (4π2r2 + h2) / 4π2r

Where,
π = 3.1415926
h = Height required for Helix to complete one revolution
r = Radius

Related Calculator:

3 DB Bandwidth, Cutoff Frequency

Formula:


bandwidth formula
frequency-formula

Where,
      Q = Quality factor

Related Calculator:

Wien's Displacement Law

Formula:

λ = b / T

Where,
λ = Peak Wavelength
b = 0.028977 mK (Wien's constant)
T = Temperature

Related Calculator:

HP (Horsepower) to Amps Conversion

Formula:

1 Ph.Amps = ((( (746 x hp) / V ) / E.F ) / P.F )
1.FLA = ( (1 Ph.Ampere) x 1.25 )
3 Ph.Amps = (((( (746 x hp) / 1.732 ) / V ) / E.F ) / P.F )
3.FLA = ( (3 Ph.Ampere) x 1.25 )


Where,
V - Volts,
E.F - Efficiency,
P.F - Power factor,
FLA - Full Load Amps.

Related Calculator:

Graham's Law of Effusion

Graham's law of effusion:


Rate1 / Rate2 =√Mass2 / Mass1

Related Calculator:

Snell's Law Refraction

Formula:


n1 sinθ1 = n2 sinθ2

Where,
n1 = Refractive Index of first medium
n2 = Refractive Index of second medium
sinθ1 = Angle of Incidence
sinθ2 = Angle of Refraction

Related Calculator:

Vehicle Speed Error

Formula:


Speed Error =(100-Ms)/100*100
Ms=(100*T1)/(T1-Terr)
Or,
Ms=(D1-Derr)/(D1/Derr)

Where ,

Ms=Measured Traffic Speed
T1=Actual Time
Terr=Time Error
D1=Actual Distance
Derr=Distance Error

Related Calculator:

Root Mean Square Velocity Calculator

Formula :


μrms = (3RT/M)½

Where,
R = Ideal gas constant => 8.3145 (kg m2/sec2)/K mol
T = Absolute temperature in Kelvin
M = Molecular weight of the gas in kilograms

Related Calculator:

One Dimensional Motion Velocity

Formula:


v2 = u2 + 2as

Where,
v = Final Velocity
u = Initial Velocity
a = Acceleration
s = Distance

Related Calculator:

Acceleration Due to Gravity on Outside Earth

Formula:


g' = ( re2 / r2) * g

Where,
g - Earth Surface
re - Earth Radius
r - Outside Radius of Earth
g' - Acceleration due to gravity

Related Calculator:

Boltzmann Gas Constant

Formula :


k = R / NA

Where,
k = Boltzmann constant
R = Gas constant
NA = Avagetro

Related Calculator:

De Broglie Wavelength

Formula :

λ = h / (m×v)


Where,
λ = Wave length
h = Plank's Constant (6.62607 x 10-34)
m = Mass
v = Frequency

Related Calculator:

Average Translational Kinetic Energy

Formula :


Average Translational KEmolecule = (3/2)kB × T

Where,
kB = Boltzmanns constant = 1.38 x 10-23 J/K

Related Calculator:

Energy of Photon

Formula:


Ephoton = hv

Where,
Ephoton = Energy of Photon,
v = Light Frequency,
h = Planck's constant = 6.63 × 10-34 m2 kg / s

Related Calculator:

Nature of Light

Formula :


ν = c/λ

Where,
ν = Frequency of Light,
c = Speed of Light = 29979245800,
λ = Wave Length

Related Calculator:

Tidal Force

Formula :


Ft = Fn - Ff

Where,
Ft = Ftidal
Fn = Fnear
Ff = Ffar

Related Calculator:

Angular Linear Velocity

Formula:


ω = θ/t radians/sec
LV = x/t km/hr

Where,
ω=Angular velocity.
LV=Linear velocity.
θ=Angle the object traversed
x=Distance covered
t=Time taken

Related Calculator:

Planck's Constant

Formula:



Energy of Photon (E) =hc/λ or E =hv


Where,

h=planck's constant (6.6260695729x10-34)
c=velocity of light ( 2.99792458x108)
λ=Wavelength
v=Frequency

Related Calculator:

Vector Displacement

Formula:

displacement vector diagram

displacement vector


Where,

(x1,y1) -> Co-ordinates of point P
(x2,y2) -> Co-ordinates of point Q
|r| = Displacement vector

Related Calculator:

Average Acceleration

Formula:

Average Acceleration = (Velocity Difference) / (Time Difference) = (vf - vi)/(tf - ti)


Where,
vi = Initial Velocity
vf = Final Velocity
ti = Initial Time
tf = Final Time

Related Calculator:

Kinematic Displacement By Velocity and Time

Kinematics Equation Formula:

d =(( v0+vf)/2)*t

Where,
d = displacement
v0 = inital velocity,
vf = final velocity,
t = time

Related Calculator:

Kinematic Distance

Kinematics Equation Formula:

d = (v * t ) + 1/2 (a * t2)

Where,
d = displacement,
v = velocity,
t = time,
a = acceleration

Related Calculator:

Kinematic Final Velocity

Kinematics Equation Formula:

vf= v0+a*t


Where,
vf = final velocity
v0 = initial velocity
a = acceleration
t = time

Related Calculator:

Kinematic Velocity

Kinematics Equation Formula:

vf =√( v0*v0)+(2*(a*d))


Where,
v0 = inital velocity
vf =final velocity
a = acceleration
d = displacement

Related Calculator:

Focal Length of Optical Convex

Formula:


f = (R1 × R2) / ((n-1) × (R2 - R1))

Where,

f = Focal Length

R1 = Surface Radii R1

R2 = Surface Radii R2

n = Index of Refraction

Related Calculator:

Magnitude of Vector

Formula:


Length of Vector = √X2 + Y2

Related Calculator:

Moment of Inertia of a Point Mass for Rod

Formula:


I = 1/2×(m×r2)

Where,

I = Moment of Inertia

m = Mass

r = Length of Rod

Related Calculator:

Work for Linear Motion

Formula:


W = F cos(θ) d

Where,

W = Work

F = Force

d = Distance

θ = Angle

Related Calculator:

Sound Wave Velocity


Formula :

Wave Velocity Equation (v) = Frequency (f) * Wavelength (λ)

Related Calculator:

Calculate Time Duration from Earth to Moon

Formula:

Time = (2 x d) / s

Where,

d = Light distance from earth to moon (approximately 384403 km)
s = Travelling speed of laser pulse

Related Calculator:

Ceramic Transverse Strength

Formula :

MT = (8PL) / (πd3)

Where,
MT = Transverse Strength
P = Breaking Load
L = Average Distance
π = 3.1415
d = Diameter

Related Calculator:

Inelastic Collision

Formula:


m1v1 = (m1+m2)v2

Where
m1,m2 - Mass of Objects
v1,v2 - Velocity of Objects

Related Calculator:

Elastic Collision

Formula:


v1' = ((m1 - m2) / (m1 + m2)) v1
v2' = (2m1 / (m1 + m2)) v1

Where
m1,m2 - Mass of Moving Objects
v1 - Velocity of Moving Objects

Related Calculator:

Tangential and Radial Acceleration

Formula:

Radial acceleration = (V'2)/R
V' = a x T
a = v / t

Tangential acceleration = A x R
A = W / t
W = V'/ R


Where,
v = Final Velocity,
a = Final Acceleration
R = Radius
t = Final Velocity Time
W = Angular Frequency
A = Angular Acceleration
T = Acceleration at Time

Related Calculator:

Maximum Height of Projectile


Formula:

s = (vf2 - vi2) / 2a
where,
s = Distance travelled
vi = Initial velocity
vf = Final velocity
a = Acceleration

Related Calculator:

Tension of Wire Rope Holding a Load

Formula

Tension = ( Mass x Acceleration ) + ( Mass x Gravity )

Where,
Gravity = 9.8 m/s2 is Earth Gravity

Related Calculator:

Normal Force of an Object at Rest


Formula:

Normal Force of an Object at Rest = Mass (m) * Gravitational Force (F)

Related Calculator:

Normal Force of an Object on an Inclined Plane


Formula:

N = m * g * cos(x)


Where,
N = Normal Force of an Object on an Inclined Plane
m = Mass,
g = Gravitational Force,
x = Angle of Incline,

Related Calculator:

Normal Force of an Object with External Downward Force


Formula:

N = m * g + F[sin(x)]


Where,
N = Normal Force of an Object with External Downward Force
m = Mass,
g = Gravitational Force,
x = Angle of Incline,
F = Force,

Related Calculator:

Normal Force and Kinetic Friction


Formula :

N = f /μ


Where,
N = Normal Force
μ = Friction Coefficient,
f = Kinetic Friction

Related Calculator:

Refractive Index Formula

Formula

n = c / ν

Where,
n = Index of refraction
c =Velocity of light in vacuum
ν = Velocity of light in the medium

Related Calculator:

Hoop Stress

Formula:

σa =((pi x ri2 - po x ro2) / (ro2 - ri2)) - (ri2 x ro2(po - pi) / (r2 x (r02 - ri2))


Where,
σa = Hoop (Circumferential) Stress in Cylindrical Wall or Tube
pi = Internal Pressure in the Tube
po = External Pressure in the Tube
ri = Internal Radius in the Tube
ro = External Radius in the Tube
r = Radius to point in tube

Related Calculator:

Solid Shaft Maximum Torque

Formula:

Tm = (π/16) * τm * D3


Where,
π = 3.14
Tm = Maximum Twisting Moment or Torque
τm = Maximum Shear Stress
D = Solid Shaft Outside Diameter

Related Calculator:

Solid Shaft Diameter

Formula:

D = 1.72 * (Tmax / τmax)1/3


Where,
D = Diameter of Solid Shaft
Tmax = Maximum Twisting Moment
τmax = Maximum Shear Stress

Related Calculator:

Shear Stress in Shaft

Formula:

τ = (T * r) / J


Where,
τ = Shear Stress in Shaft
T = Twisting Moment
r = Distance from Center to Stressed Surface in the Given Position
J = Polar Moment of Inertia of an Area

Related Calculator:

Lowest Spring Resonant Frequency

Formula:

fres = (1/2) x √(K / M)


Where,
fres = Lowest Spring Resonant Frequency
M = Mass of Spring
K = Spring Constant

Related Calculator:

Hollow Shaft Maximum Torque

Formula:

Tmax = ( π / 16) x τmax x ((D4 - d4) / D)


Where,
Tmax= Maximum Torque (Twisting Moment) in Hollow Shaft
τmax = Maximum Shear Stress
D = Shaft Outside Diameter
d = Shaft Inside Diameter

Related Calculator:

Total Energy

Formula:

RE = m * c2
KE = (γ - 1) * (m * c2)
TE = RE - KE


Where,
RE = Rest Energy
TE = Total Energy
KE = Kinetic Energy
m = Mass
c = Speed
γ = Gamma Factor

Related Calculator:

Work Done by Frictional Force

Formula:

W(f) = F(f) * d


Where,
W(f) = Work Done by Frictional Force
F(f) = Frictional Force
d = Distance Moved

Related Calculator:

Tangential Velocity

Formula:

Vt = r ω


Where,
Vt = Tangential Velocity (meter per second)
r = Radius (m)
ω = Angular Velocity ( 20 * π )

Related Calculator:

Peukerts Law

Formula:


Actual Battery Capacity = (C x I) / In
Peukert's Formula, T = C / In



Where,
C = Rated Battery Capacity
I = Rate of Discharge
n = Peukert's Number
T = Full Discharge Time

Related Calculator:

Stokes Law

Formula:

F=6π×a×n×v


Where,
a = Radius
v = Velocity
n = Shear Viscosity
F = Drag Force a Sphere

Related Calculator:

Newton's Third Law of Motion

Formula:

FAB = - FBA


Where,
FAB = Object A Exerts a Force
FBA = Object B Exerts a Force

Related Calculator:

Horizontal and Vertical Component

Formula:

H = cos(θ) * f
V = sin(θ) * f


Where,
H = Horizontal Component
V = Vertical Component
θ = Angle
f = Force

Related Calculator:

Convex Mirror Equation

Formula:

Convex Mirror Equation

Convex Mirror Equation
1 / f = 1 / d0 + 1 / di

f = 1/ ((1/do) + (1/di))
do = 1/ ((1/f) - (1/di))
di = 1/ ((1/f) - (1/do))


Where,
f = Focal Length
do = Object Distance
di = Image Distance

Related Calculator:

Apparent Temperature

Formula:

AT = Ta+ 0.348 * e-0.70 * ws + (0.70* (Q * (ws+10)) - 4.25)
e = (rh)/100)*6.105*e((17.27 *Ta) / (237.7+Ta))


Where,
AT = Apparent Temperature
Ta = Dry Bulb Temperature
e = Water Vapour Pressure
ws = Wind Speed at an Elevation of 10 meters
Q = Net Radiation Absorbed per unit area of Body Surface
rh = Relative Humidity

Related Calculator:

Axial Stress of Cylinder Wall or Tube

Formula:

σa =(pi * ri2 - po * ro2) / (ro2 - ri2)


Where,
σa = Stress in Axial Direction of Cylinder Wall or Tube
pi = Internal Pressure in the Tube
po = External Pressure in the Tube
ri = Internal Radius in the Tube
ro = External Radius in the Tube

Related Calculator:

Distance from Center of Gravity to Triangle Base

Formula:

center of gravity
A = h / 3


Where,
A = Distance from Center of Gravity to Triangle Base
h = Height

Related Calculator:

Circle Center of Gravity

Formula:

d = (h x (b + c)) / (2 x (a + b + c))


Where,
d = Center of Gravity of Circle
h = Slant Height
a = Length of Side A
b = Length of Side B
c = Length of Side C

Related Calculator:

Friction Force

Formula:

F = μ * N
μ = F / N
N = F / μ


Where,
F = Frictional Force
μ = Friction Coefficient
N = Normal Force

Related Calculator:

Inverse Square Law

Formula:

i = 1 / r2
inverse-square-law


Where,
i = Intensity
r = Distance

Related Calculator:

Coefficient of Friction

Formula:

μ = Fmax / Fn


Where,
μ = Coefficient of Friction
Fmax = Frictional Force
Fn = Applied Normal Force

Related Calculator:

Center of Gravity of Multiple Objects or Bodies

Formula:

Center of Gravity

Where,
xcg = Center of Gravity
mi = Mass of (multiple) i number of objects
xi = Distance of i number of objects

Related Calculator:

Torsional Deflection of a Shaft

Formula:

θ = (L * T) / ( J * G)


Where,
θ = Torsional (Angular) Deflection of Shaft
L = length of shaft or cylinder
T = Twisting Moment
J = Polar Moment of Inertia of an Area
G = Modulus of Rigidity

Related Calculator:

Drag Force on Disk

Formula:

F=16*a*n*v


Where,
a = Radius
v = Velocity
n = Shear viscosity
F = Drag Force on a Disk Broadside to Flow

Related Calculator:

Wood Density

Formula:

ρmax = m / Vmin
ρmin = m / Vmax


Where,
ρmax = Maximum Density
ρmin = Minimum Density
m = Wood Mass
Vmax = Maximum Volume
Vmin = Minimum Volume

Related Calculator:

Hull Speed

Formula:

H = 1.34 × √(L)
M = H × 1.1508
N = H × 1.852


Where,
H = Hull Speed in Knots
M = Hull Speed in Miles/Hr
N = Hull Speed in Kilometers/Hr
L = Boat's Waterline Length

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Vickers Hardness

Formula:

Vickers Hardness Number
HV = 1.854 * (f / d2)


Where,
HV = Vickers Hardness
f = Load
d = Arithmetic Mean

Related Calculator:

Soil Moisture / Water Content

Formula:

w = (Mw / Ms) * 100


Where,
w = Moisture Content
Mw = Mass of Water in Soil
Ms = Dry Mass of Soil

Related Calculator:

Muzzle Velocity

Formula:

V = √((e * 450240) / w)


Where,
V = Muzzle Velocity
e = Airgun Energy
w = Pellet Weight

Related Calculator:

Inverse Square Law

Formula:

I1 / I2 = (d2)2 / (d1)2

inverse square law

Where,
i = Intensity 1
x = Distance 1
y = Distance 2
z = Intensity 2

Related Calculator:

Lever Effort Force

Formula:

Fe = (Fl * dl) / de


Where,
Fe = Lever Effort Force
Fl = Load Force
dl = Distance From Load Force to Fulcrum
de = Distance From Effort Force to Fulcrum

Related Calculator:

Aggregates Volume

Formula:

Metric
Volume = Depth * Width * Length
Amount = Depth * Width * Length * Density

Imperial
Volume = (Depth * 2.54 * Width * 2.54 * Length * 30.48 / 10000) / 100
Amount = Volume * Density

Related Calculator:

Ampere

Ampere Formula:


Using Horsepower,

A = ( h * 746 ) / ( v * e ) ( For, Direct Current )
A = ( h * 746 ) / ( v * e * p ) ( For, Single Phase AC )
A = ( h * 746 ) / ( v * e * p * 2 ) ( For, Two Phase AC )
A = ( h * 746 ) / ( v * e * p * 1.73 ) ( For, Three Phase AC )

Using Kilowatts,

A = ( kw * 1000 ) / ( v ) ( For, Direct Current )
A = ( kw * 1000 ) / ( v * p ) ( For, Single Phase AC )
A = ( kw * 1000 ) / ( v * p * 2 ) ( For, Two Phase AC )
A = ( kw * 1000 ) / ( v * p * 1.73 ) ( For, Three Phase AC )

Using Kilovolts Ampere,

A = ( kva * 1000 ) / ( v ) ( For, Single Phase AC )
A = ( kva * 1000 ) / ( v * 2 ) ( For, Two Phase AC )
A = ( kva * 1000 ) / ( v * 1.73 ) ( For, Three Phase AC )


Where,
A = Ampere
kva = Kilovolt-Amp
v = Voltage
p = Power Factor
e = Efficiency
h = Horsepower
kw = Kilowatts

Related Calculator:

Orbital Radius

Formula:

R = 3√((T2GM) / (4π2))


Where,
R = Satellite Mean Orbital Radius
T = Satellite Orbit Period
M = Planet Mass
G = Universal Gravitational Constant = 6.6726 x 10-11N-m2/kg2

Related Calculator:

Pulse Repetition Frequency

Formula:

Pulse Repetitive Frequency (PRF) = C / 2 * Runamb


Where,
C = 3*108 m/s
Runamb = Unambiguous Range

Related Calculator:

Density of Sand


Density of sand = Mass of sand / Volume of calibrating container

Related Calculator:

Change In Velocity

Formula:

Velocity Change = Impulse / Mass

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Gravitational Potential Energy

Formula:

Gravitational Potential Energy = Mass (kg)x Gravitational Acceleration x Height(m)


Where,
Gravitational Acceleration = 9.8 m/s2

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Resultant Force

Formula:

Resultant Force = √ ((F1 × cos(A) + F2 × cos(B))2 + (F1 × sin(A) + F2 × sin(B))2)
R = tan-1(F1×sin(A) + F2 × sin(B))) / ((F1 × cos(A)+ F2 × cos(B))


Where,
F1 = First Force
F2 = Second Force
A = Direction Angle of First force
B = Direction Angle of Second Force
R = Direction Angle of Resultant Force

Related Calculator:

Brewster Angle

Formula:

θpolarizing = arctan(nt/ni)


Where,
θpolarizing = Brewster Angle / Polarization Angle
ni = Light from a Medium of Index
nt = Light Incident upon a Medium of Index

Related Calculator:

Barlow's Formula

Formula:

Pressure = (2 x S x T) / D


Where,
S = Allowable Stress
T = Wall Thickness
D = Outside Diameter

Related Calculator:

NPSHA

Formula:

NPSHa = (Pa-Pv+Pn)/ρ


Where,
NPSHa = NPSH Available
Pa = Atmospheric Pressure
Pv = Vapor Pressure
Pn = Gage Pressure at the Pump Suction
ρ = Density

Related Calculator:

Simple Harmonic Motion Calculator

Formula:

ω = 2πf
v = Aω cos (ωt)
a= - d ω2 sin (ωt)


Where,
ω = Angular Frequency
f = Frequency
v = Velocity
A = Ampltude
t = Time
d = Displacement
a = Acceleration

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Horizontal Velocity

Formula:

Horizontal Velocity (V) = Distance Travelled / Time Taken

Related Calculator:

Miles Equation

Formula:

Xgrms = √[(Π / 2) F x Q x P]
Xpeak = 3 Xgrms


Where,
F = Frequency
P = Acceleration
Q = Quality Factor

Related Calculator:

Planck's Equation

Formula:

e = h × v


Where,
e = Energy of Photon
h = Planck's Constant(6.63 × 10-34 J / s)
v = Light Frequency

Related Calculator:

Period Of Oscillation

Formula:

Period of Oscillation = 2 π √(L / g)


Where,
T = Period
L = Length
g = Acceleration of Gravity

Related Calculator:

Frequency Wavelength

Formula:

Frequency (F) = C / W


Where,
C = Speed Of Light(3×108)
W = Wavelength

Related Calculator:

Wavelength Frequency

Formula:

Wavelength (λ) = C / F


Where,
C = Speed Of Light(3 × 108)
F = Frequency

Related Calculator:

Frequency to Energy

Formula:

Energy of Light (E) = 6.626 × 10 - 34 × Frequency

Related Calculator:

Wavelength to Energy

Formula:

Energy of Light = (6.626 × 10-31 × c) / w(m)


Where,
e = Energy
c = Speed Of Light(300000000 m/s)
w = Wavelength

Related Calculator:

Doppler Effect Blue Shift Frequency

Formula:

Observed Blue-Shift Frequency = F × (1+(V/C))


Where,
F = Emitted Frequency
V = Velocity Towards You
C = Speed of Light from Source

Related Calculator:

Doppler Effect Blue Shift Wavelength

Formula:

L = (E × C) / (C + V)


Where,
L = Observed Blue-Shift Wavelength
E = Emitted Wavelength
C = Speed of Light from Source
V = Velocity Towards You

Related Calculator:

Doppler Effect Blue Shift Velocity

Formula:

V = C × ((E / b)-1)


Where,
V = Blue-Shift Velocity
C = Speed of Light from Source
E = Emitted Wavelength
B = Blue-Shift Wavelength

Related Calculator:

Doppler Effect Red Shift Frequency

Formula:

Observed Red-Shift Frequency = F × (1-(V/C))


Where,
F = Emitted Frequency
V = Velocity Away from You
C = Speed of Light from Source

Related Calculator:

Doppler Effect Red Shift Velocity

Formula:

V = C × (1 - E / R)


Where,
V = Red-Shift Velocity
C = Speed of Light from Source
E = Emitted Wavelength
R = Red-Shift Wavelength

Related Calculator:

Doppler Effect Red Shift Wavelength

Formula:

L = (E × C) / (C - V)


Where,
L = Observed Red-Shift Wavelength
E = Emitted Wavelength
C = Speed of Light From Source
V = Velocity Away from You

Related Calculator:

Velocity

Velocity Time Distance Formula:

Velocity = Distance / Time
Time = Distance / Velocity
Distance = Velocity * Time

Related Calculator:

Magnitude of the Total Initial Momentum of the Two Block System

Formula:

Total Initial Momentum = M1 × V1 + M2 × V2


Where,
V1 = Velocity of Block1
V2 = Velocity of Block2
M1 = Mass of Block1(kg)
M2 = Mass of Block2(kg)

Related Calculator:

Speed of Falling Object

Formula:

s = g×t


Where,
s = Speed
g = Gravitational constant
t = Time

Related Calculator:

Gas Pressure kPa

Formula:

P = nRt / V


Where,
P = Pressure
V = Volume
n = Moles of gas
t = Temperature
R = Gas Constant (8.314 J K-1 mol-1)

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Time Using Speed and Distance

Formula:

t = d / s


Where,
t = Time
d = Distance
s = Speed

Related Calculator:

Hooke's Law Spring Constant

Formula:

k = F / (X - X0)


Where,
k = Spring Constant
F = Force
X = Distance from Equilibrium
X0 = Spring Equilibrium Position

Related Calculator:

Angular Momentum

Formula:

Moment of Inertia = Mass x Radius2 / 2
Angular Momentum = Moment of Inertia x Angular Speed

Related Calculator:

Work Power and Force | Power

Formula:

Force = (Time × Power) / Distance
Power = (Force × Distance) / Time
Work = Force × Distance

Related Calculator:

Force Time Distance

Formula:

t = f × d / p
f = t × p / d
d = t × p / f
p = f × d / t


Where,
f = Force
d = Distance
p = Power
t = Time

Related Calculator:

Free Fall

Formula:

V = G × T


Where,
V = Downward Velocity
G = Gravitational Acceleration
T = Time of Downward Fall

Related Calculator:

Mayer's Relation

Formula:

R = Cp - Cv


Where,
R = Universal Gas Constant
Cp = Specific Heat at Constant Pressure
Cv = Specific Heat at Constant Volume

Related Calculator:

Second Moment of Area

Area Moment of Inertia Formula:

Rectangle
Ix = w × h3 / 12
Iy = h × w3 / 12

Triangle
Ix = w × h3 / 36

SemiCircle
Ix, Iy = π × r4 / 8

Circle
Ix, Iy = π × r4 / 4


Where,
Ix, Iy = Area Moment Of Inertia
w = Width
h = Height
r = Radius

Related Calculator:

Gauge Pressure

Formula:

Gauge Pressure = Absolute Pressure - Atmospheric Pressure

Related Calculator:

Online Total Energy

Formula:

TE = U + (mc2) / 2 + mgz


Where,
m = Mass of System
z = Height Relative Reference Frame
c = Velocity of System
U = Internal Energy
TE = Total Energy
g = Gravity (9.8 m/s)

Related Calculator:

Deceleration Distance

Formula:

Deceleration = v2 - u2 / 2s


Where,
v = The Final Velocity
u = The Initial Velocity
s = Distance

Related Calculator:

Heat Capacity at Constant Volume

Formula:

Q = n × Cv × Δ T


Where,
Q= Heat Capacity
n = Number of Moles
Cv= Specific Heat at Constant Volume
ΔT= Temperature Change

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Net Force

Formula:

if the object is at rest
n = a + g

if object is not at rest
n = Sum of All Force Values of the Object


Where,
n = Net Force
a = Applied Force
g = Gravitational Force

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Dc Motor Speed

Formula:

Torque = Prot / ω


Where,
Prot = Rotational Mechanical Power
ω = Angular Velocity

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Total Acceleration of Disc at Moment of Release

Formula:

a = t / r


Where,
a = Total Acceleration of Disc
t = Net Tangential Acceleration
r = Radius of Disc(m)

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Spring Stiffness

Formula:

s=(64 × n × (m/2)3 × f)/(d4 × g × 103)


Where,
s = Spring Stiffness
n = Number of Coils
g = Shear modulus
d = Diameter of spring (metre)
m = Mean coil diameter (metre)
f = Spring Force

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Von Mises Stress

Formula:

(σv) = √(σx2 - (σx x σy) + σy2 + (3 ×τxy2))


Where,
σv = Von Mises Stress
σx, σy = Normal Stress
τxy = Shear Stress

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Maximum Shear Stress

Formula:

Maximum Shear Stress (σmax ) = √(((σx - σy)/2)2 +τxy2)


Where,
σx, σy = Normal Stress
τxy = Shear Stress

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Momentum

Formula:

Momentum = Mass x Velocity

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Specific Gravity and Water Absorption Test

Formula:

Water Absorption = (S - W / W) x 100


Where,
S = Weight of Dry Piece Soaked in Fluid
W = Weight of Dry Piece in Fluid

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Apparent Solid Specific Gravity

Formula:

Ga = (W x D) / (W - I)


Where,
Ga = Apparent Solid Specific Gravity
W = Weight of Dry Piece in Fluid
D = Density of Fluid
I = Weight of Dry Piece Soaked & Immersed in Fluid

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Bulk Specific Gravity

Formula:

Gb = (W x D) / (S - I)


Where,
Gb = Bulk Specific Gravity
W = Weight of Dry Piece in Fluid
D = Density of Fluid
S = Weight of Dry Piece Soaked in Fluid
I = Weight of Dry Piece Soaked & Immersed in Fluid

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True Specific Gravity

Formula:

Gt = (W2 - W1) / (W3 - W1) - (W4 - W2)


Where,
Gt= True Specific Gravity
W1 = Weight of S.G Bottle
W2 = Weight of S.G Bottle + Powdered Sample
W3 = Weight of S.G Bottle + Water
W4 = Weight of S.G Bottle + Water + Powdered Sample

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Bagnold Number

Formula:

Bagnold Number (Ba) = (ρ × d2 × λ1/2 × γ) / μ


Where,
ρ = Particle Density
d = Grain Diameter
λ = Linear Concentration
γ = Shear Rate
μ = Dynamic Viscosity of the Interstitial Fluid

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Lame's First Parameter in Three Dimensional

Formula:

λ = K - (2 / 3) x μ


Where,
K = Bulk Modulus
μ = Shear modulus
λ = Lame's First Parameter

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Time of Flight

Formula:

Time of flight = (2 v0Sin(θ)) / g


Where,
T = Time of Flight (s)
v0 = Initial Velocity (m/s)
g = Acceleration Due to Gravity (9.80 m/s2)
θ = Angle of the Initial Velocity from the Horizontal Plane (radians or degrees)

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Maximum Height Projectile

Formula:

Maximum height reached = V0² sin² θ / 2g


Where,
V0 = Initial Velocity
θ (sin θ) = Component Along y-axis
g = Acceleration of Gravity

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Momentum with Time

Formula:

ΔT = ΔM / F


Where,
ΔM = Momentum Change
F = Force
ΔT = Time Change

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Hollow Shaft Diameter

Formula:

Diameter Ratio = Inner Diameter / Outside Diameter
Inner Diameter = Diameter Ratio × Outside Diameter
Outside Diameter = Inner Diameter / Diameter Ratio

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Log Volume | Doyle Log Scale

Formula:

l = (d - 4) × (d - 4) × (h / 16)
s = (0.79 × d × d - 2 × d - 4) × (h / 16)
i = (0.796 × d × d - 1.375 × d - 1.23) × (h / 16)


Where,
l = Doyle Scale
s = Scribner Scale
i = International Scale
d = Log diameter (inches)
h = Log length(feet)

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Upstream Downstream

Formula:

Speed in upstream (km/hr) = a + b
Speed in downstream (km/hr) = a - b


Where,
a = Speed of a boat in still water (km/hr)
b = Speed of the stream (km/hr)

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Speed of Man in Stream

Formula:

Speed of Man (km/hr)= a x ((n + 1) / (n - 1))


Where,
a = Speed of stream (km/hr)
n = Number of times to row upstream to row downstream the river

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Distance Between Two Places in Water

Formula:

Distance between two places (km) = ((a2 - b2)t) / 2a


Where,
a = Speed in still water (km/hr)
b = Speed of stream (km/hr)
t = Time taken to reach place A than place B (hours)

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Distance Covered by a Person in Upstream Downstream

Formula:

Distance covered by person in journey (km) = ((a2 - b2)t) / 2b


Where,
a = Speed in still water (km/hr)
b = Speed of stream (km/hr)
t = Time taken in upstream than downstream (hours)

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Speed of Man in Still Water

Formula:

Speed of man in still water (km/hr)= ((b + a) / (b - a)) x c


Where,
a = Time taken to cover distance at downstream (hours)
b = Time taken to cover distance at upstream (hours)
c = Speed of stream (km/hr)

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Average speed of Boat in Upstream and Downstream

Formula:

Average Speed of a Boat (km/hr) = ((a + b) x (a - b)) / a
Speed in Downstream (km/hr) = a + b
Speed in Upstream (km/hr) = a - b


Where,
a = Speed in Still Water (km/hr)
b = Speed of Stream (km/hr)

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Speed of Boat in Still Water

Formula:

Speed in still water (km/hr)= (1 / 2) (a + b)
Rate of stream (km/hr)= (1 / 2) (a - b)


Where,
a = Downstream (km/hr)
b = Upstream speed (km/hr)

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Relation Between Momentum and Kinetic Energy

Formula:

K = P2/ 2 m


Where,
P = Momentum
m = Mass of the Particle
K = Kinetic Energy

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Flocculation Power

Formula:

P = G2* u *V


Where,
G = Velocity Gradient
u = Dynamic Viscosity
V = Flocculation Tank Volume
P = Power

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