What would stop a pendulum swinging forever in vacuum? What kind of friction is in vacuum?
64373
Would a pendulum swing indefinitely in a frictionless vacuum?
83138
Need help understanding an equation of motion for a pendulum
130942
What counter balances gravity here?
1613
Is temperature in vacuum zero?
137850
Friction at zero temperature?
155273
How can an accelerating inclined plane prevent a block on it from sliding?
53253
What force acts on a small piece of a free, spinning ring?
69931
Why does a simple pendulum or a spring-mass system show simple harmonic motion only for small amplitudes?
140176
What keeps electrons on a negatively-charged conductor from leaving?
54581
How is the electostatic field propagated by the vacuum? How does a charge feel the presence of another charge when there is NOTHING between them?
36822
Force of friction in rolling without slipping
62362
Friction during pure rotation
138214
Why does a surface always exert force normal to it?
147803
Why does vacuum have a nonzero characteristic impedance towards electromagnetic radiation?
33886
Solution to over-damped harmonic spring
45613
Conservation of energy when slowing an object down
112911
The acceleration vector of a simple pendulum