Janice is roller skating at a constant speed away from her house. the first half of the street is flat, but the second half has a steep upward hill. janice moves more slowly as she skates up the hil

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.