Wolf, a 65-kg explorer overburdened from carrying her 25-kg supply pack, stops on a patch of ice. To lighten her load, she throws a 9-kg piece of scrap from her pack behind her at a
speed of 16.4 m/s. If the ice provides negligible friction, what should her velocity be after
tossing the scrap?

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.

B. elliptical. as in oval. 0 (==