Two air track carts move along an air track towards each other What is the total momentum of the two art system

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

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.

Newtons view of arrangement of the universe. don't copy from anywhere.