As a person takes a shower, the shower curtain is pulled into the shower. Why does the shower curtain push inward? I. The pressure on the outside of the shower is greater than the pressure on the inside of the shower. II. The water displaces air on the inside of the shower. III. The air in motion produces a decrease in pressure.

No it doesnt because it can be any number.

Fitness is the ability to perform only very light levels of physical activity.

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.