An electrician wraps rubber electrical tape around a copper wire. since rubber is an insulator, which statement best explains the point of wrapping rubber around a copper wire? a) rubber stops charges from flowing. this protects people by stopping electricity from flowing. b) charges flow better through the rubber. this makes electricity flow better through the wire. eliminate c) the rubber tape keeps the wire from falling apart. d) the rubber keeps the copper wire from melting.

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.