Jana hits the ball so that it moves with an initial velocity 8m/s upwards. The ball starts from 5m above the floor. How fast will the ball be when it reaches the floor?

Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane