During which type of collision is none of the energy converted to sound energy?
O A. Inelastic
O B. Perfectly inelastic
O C. All collisions
O D. Elastic

If a clock aboard a space ship traveling at 0.900 c of the speed of light relative to earth chimes once at the beginning of the hour and again when it reads one hour later, how much time would an observer on earth say elapsed between the two chimes?

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.

What is an electric motor? explain its operation. 2-3 sentence