Review later 2. If a block has no unbalanced force acting on it, the magnitude of the block's acceleration is
1. zero
2. decreasing
3. increasing
4. constant, but not zero
Review later

Which property of fossils allow scientists to determine the relative rock ages..

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?