A hard rubber ball is dropped from a height of 17.5 meters above a hard surface. After striking the surface, the ball rebounds upward with a speed of 7 m/s. Determine the maximum height of the hard rubber ball after the impact. The mass of the ball is 396 grams.

What is the kinetic energy of a 10-kg bicycle moving at 10 m/s

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

When an object is heated it contracts. a. true b. false