A tennis ball bounces on the floor three times. If each time it ...

[evelyn o bentley]

A tennis ball bounces on the floor three times. If each time it loses 22.0 of its energy due to heating, how high does it rise after the third bounce, provided we released it 2.3 m from the floor?
 
  A) 110 cm
  B) 11 cm
  C) 110 mm
  D) 140 cm

Question 2

Identical forces act for the same length of time on two different masses. The change in momentum of the smaller mass is
 
  A) smaller than the change in momentum of the larger mass, but not zero.
  B) larger than the change in momentum of the larger mass.
  C) equal to the change in momentum of the larger mass.
  D) zero.
  E) There is not enough information to answer the question.

[okolip]

Answer to Question 1

A

Answer to Question 2

C