1. You dreg a crate across a floor with a rope. The force applied is 950 N and the angle of the rope is 32.0" above the horizontal. a. How much work do you do on the crate when moving it 22.0 m?
W-Fdcos (angle)

b. If you complete the job in 8.00 s, what power is developed?
P = W / t

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

The geological theory that states that pieces of earth's lithosphere are in constant slow motion is the theory of plate tectonics.