How did people years ago find out which side of a magnet was north and which was south?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.