Calculate the magnitude of the acceleration due to gravity on the surface of earth due to the moon.

Explanation:

We know that the gravity on the surface of the moon is,

Gravity at a height h above the surface of the moon will be given as:

..........................(1)

where:

G = universal gravitational constant

m = mass of the moon

r = radius of moon

We have:

is the distance between the surface of the earth and the moon.

Now put the respective values in eq. (1)

is the gravity on the moon the earth-surface.

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.