Find the final velocity of two balls colliding head on if the ball with velocity v2i = −21.4 cm/s has a mass equal to half that of the ball with initial velocity v1i = +27.1 cm/s.

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

What is the coefficient of kinetic friction μk between the block and the tabletop?

Difference between series and parallel circuits