4.30 m long string vibrates at 640 Hz with successive nodes at 1.90m, 2.50 m and 3.10 m from one end of the string.

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.