A 100 kg man stands on bathroom scale inside an elevator, on planet where free fall acceleration is 10 m. s^2. Elevator which was initially at rest starts moving moving down with constant acceleration 5 m/s^2. Reading of the scale is

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

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical