The gravitational potential energy of an object is due to a .its mass
b .its acceleration due to gravity
c. its height above the earth' s surface
d .all of these

d. all of these

look at the picture to know from where we get this law with application on it

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.

answerscientific theory;