Asoccer ball is at rest. a kicker kicks the ball and it travels a distance of 80 meters in 12 seconds. what is the ball's acceleration?

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Which best term to describe a chemical reaction that absorbs energy from its surroundings? a.thermal conductor b.thermal insulator c.endothermic d.exothermic

How does the motion of an airplane compare to the motion of a rocket ?