A man pulls on his dog leash to keep him from running after bicycle which term best describes this example?

A) negative work

B) positive work

C) negative work

D) positive force

If a 50 kg student is standing on the edge of a cliff. Find the student's gravitational potential energy if the cliff is 40 m high.

If a roller coaster car had 40,000 J of gravitational potential energy when at rest on the top of a hill how much kinetic energy does it have when it is 3/4 of the way down the hill

Which of these stars has the coolest surface temperature? A. A starB. F starC. G starD. K star

When the resistance in a circuit remains constant, how are the voltage and current related? 1) The current doubles when the voltage doubles because they are directly proportional.

If an atom has twelve electrons, how many electrons are in the n=1 energy level? how many electrons are in the n=2 energy level? how many electrons are in the n=3 energy level?

Can rocks be weathered by wind and chemicals in the air

1. if you rub a neutral glass rod with silk, the silk acquires a negative charge. if you rub a neutral glass rob with a rubber rob, the rubber rod acquired a negative charge.

What's a scientific inquiry

Calculate work If force of 50 Newton's and distance is 6 meters.

What heats up hot chocolate faster? milk or water?