Formula:

E = 9μK / (μ+3K)


Where,
E = Young Modulus of Isotropic Elastic Solids
μ = Lame Coefficient
K = Bulk Modulus

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Formula:

V_t = √ ((2 x m x g) / (ρ x A x C_d))


Where,
V_t = Terminal Velocity (Maximum Falling Speed)
m = Mass of the Falling Object
g = Acceleration due to Gravity
ρ = Density of Fluid
A = Projected Area of the Object
C_d = Drag Coefficient

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Formula:

p = 2π (l / (2 + √2g))^0.5


Where,
p = Oscillation Period of Double Pendulum
l = Length
g = Gravitational Acceleration

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Formula:

sin θ_w = v_p / v_b


Where,
sin θ_w = sine θ_w
θ_w = Mach Wedge Angle of Shock Waves
v_p = Wave Speed
v_b = Body Speed

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