Calculate the weight in newtons of a 2.4-kg melon. express your answer to two significant figures and include the appropriate units.

Since mass given is 2.4 kg . We know that W=mg where m is the mass of the objects which g is the gravitational acceleration on surface of earth . So we get w=2.4 ×10=24N

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.