Suppose you want to represent the velocity of a BALL with respect to a particular frame of reference from aboard a moving TRAIN. You would most likely write the velocity of the ball using the symbol v with the subscript(s):

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.

He can play two games. 13/4=3.253.25*2=6.5