Asmall cart and one of larger mass collide and rebound off each other. the carts were initially moving with the same speed. which one changes its velocity the most during the collision? they both have no change in velocity. the small cart changes its velocity the most. they both have the same change in velocity. the large cart changes its velocity the most.

Hunter is in lab. he clears a spot on his lab bench to start working. he also puts his lab coat and goggles on. he then identifies where all of the safety equipment is. he notices his station is next to the fume hood, which ventilates the chemicals stored there. the noise of the fume hood was bothersome, so hunter turned it off. which could be an error in his set-up? he should not turn off the fume hood.  he should wait to put on his coat until after the directions are given.  he should wait to put on his goggles until after the directions are given.  he should not sit next to the fume hood.