A nail is hit with a hammer with a force of 10 Newtons. The nail moves into the wood with a force . greater than 10 N
equal to 10 N
less than 10N

Explanation:

Less than 10N, because the wood is giving a reaction force towards the nail.

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Apossible long term health effects of stress would be work

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.