Astudent uses a stopwatch to measure the period of the pendulum of the beverly clock in the corridor. his measurements are: (a) 13.54is (b) 13.44 s (c) 13.89 s (d) 13.41 s (e) 13.17s (f) 13.22 s . calculate his best estimate of the period calculate the associated error .explain the assumptions behind your estimation of the error

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.