Imagine a ball on a track where no energy is transferred between the ball and the track or between the ball and the air around it. The ball starts from rest at the position labeled start. Will the ball make it over the hill in the right ?

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

Acar of mass 800kg is moving at a speed of 2.2m/s.

Robin is swinging back and forth from a trapeze. in which of the following situations is his kinetic energy being transformed into potential energy