Acrate with mass 32.5 kg initially at rest on a warehouse floor is acted on by a net horizontal force of 14.0 n.
(a) what acceleration is produced?
(b) how far does the crate travel in 10.0 s?
(c) what is its speed at the end of 10.0 s?

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.