9. Which of the following has the greatest momentum?
O a. a 4.0 kg bowling ball moving at 2.0 m/s
O b. a 0.15 kg baseball moving at 10.0 m/s
c. a 1.6 x10^3 kg car moving at 0.5 m/s
O d. a 0.02 kg bullet moving at 950 m/s

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line