Equation of simple harmonic motion
117445
SHM with acceleration at mean position
34635
Two question on harmonic function
44595
Derivation of Newton-Euler equations
104171
Geometric derivation of wave equation
45131
Derivation of equations of motion in Nordstrom's theory of scalar gravity?
67758
The meaning of "Angular frequency" of a spring that behaves as a simple harmonic oscilator
10953
Elementary argument for conservation laws from symmetries *without* using the Lagrangian formalism
93848
Proving energy conservation for wave equation
121311
Simple Harmonic Motion - What are the units for $\omega_0$?
114172
Derivation of Hamilton-Jacobi theory using canonical transformations
47230
A change of variables in the euler equation
130422
Derivation of the Noether current
142821
Why?$\int_0^1\int_{u(t)}^{u(t)+w(t)} f(t,v(t)) dv dt = \int_0^1 f(t,u(t)+\theta w(t))w(t) dt; ~~\theta\in[0,1] $
73660
Relativistic Doppler effect derivation
37855
Sums and harmonic series
69931
Why does a simple pendulum or a spring-mass system show simple harmonic motion only for small amplitudes?
130166
Equivalece of the geodesic equation and the continuity equation for the energy-momentum tensor