How does distance from the ground affect a ball's potential energy

Will a heavier bowling ball hit pins better than a lighter bsll

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

Most of the volume of an atom is occupied by the