When an unbalanced force acts on an object A. The object's motion doesn't change
B. The inertia of the object increases
C. The weight of the object decreases
D. The object accelerates

The correct answer is: a

Simple harmonic motion wind energy circulation best answer from the choices

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.

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