If a 200kg cart starts at point A, what is its potential energy? PE=mgh g=9.8 A. 28,000 J B. 274,400 J C. 2,660,000 J D. 1,960 J

B or 274,400

Explanation:the reason it is 274,400 is because I said so, no i'm just playing with you the actuall reason it is that is because if you take the cart's weight and then think and remember what you were taught in the 8th grade you will get your answer.

b.

hope this : )

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.