Angular Frequency
Malus' law (polarized light)
Froude number - ship hydrodynamics
Security characteristic line
Sears–Haack body (volume)
Simple Harmonic Motion - time period
4-dimensional Quartic Hypervolume of a 3-sphere
Time to reach specific temperature (related to Biot and Fourier numbers)
Simple gear train with two gears (Torque ratio)
Boltzmann's Entropy Formula