A5.73 kg bowling ball moves in a straight line at 1.6 m/s.
how fast must a 3.6 g ping-pong ball move in a straight line so that the two balls have the same momentum?
answer in units of m/s

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Why does lightning travel from clouds to the ground?

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.