Solution equation of a wave motion, X = 3 cos (0.2 t --π / 4) given as. a) Find its position at the start, b) Find out when it reaches the maximum position.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.

Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil