A work crew is using a pulley to lift a small piano up the outside of a building to a second-floor balcony. The piano has mass 180 kg. At a height of 3.0 m, what is the piano’s gravitational potential energy with respect to the ground? A. 9.8 J B. 180 J C. 540 J D. 5,300 J

5,300 j

Explanation:

i answered it and got it right

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.