What is statement about weight control is false

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.

What is the period of a wave traveling 5 m/s if its wavelength is 20 m/s

A36,287 kg truck has a momentum of 907,175 kg • . what is the truck’s velocity