A 380-N girl walks down a flight of stairs son that she is 2.5 m below her starting level. What is the change in the girl's gravitational potential energy?

Which of these is exhibiting kinetic energy?1) a rock on a mountain ledge2) a space station orbiting Earth 3) a person sitting on a couch while watching TV4) the high-energy phosphate bonds of a molecule of ATP5) an archer with a flexed bow

Why is electric switches and boards are made up of plastic

How big is the sun? how large are the various parts of the sun? corse hero?

What's the potential difference across a 5.0 ohms resistor that carries a current of 5.0A A-1.0 10^2 V B-25 V C - 10.0 V D-1.0 V

If Galileo's experiment did not measure the speed of light, what did it measure?

Which interaction of nature is weakest? a. strong c. electromagnetic b. weak d. gravitational

Two workers pull horizontally on a heavy box but one pulls twice as hard as the other. The larger pull is directed at 25.0 west of north and the resultant of these pulls is 430.0N directly northward.

What would happen to an object in orbit without gravity pulling down?

The waters of a lake will be most layered in which season A. winter B. spring C. summer D. fall

Which of the following is an example of an archery contestant showing good precision but poor accuracy? O A. Hitting a bulls-eye once and then missing a second time O B. Hitting a bulls-eye every time O C.