A mass of 3.0 kg is attached to a spring with a spring constant of 52 N/m. If the system was set in motion, what would be its period?

Iwannasay c is the most accurate

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.

Answershe should not have multiplied the sulfur atoms by the subscript 4