We move a particle along an x axis, first outward from x = 1.0 m to x = 4.0 m and then back to x = 1.0 m, while an external force acts on it. that force is directed along the x axis, and its x component can have different values for the outward trip and for the return trip. here are the values (in newtons) for four situations, where x is in meters. find the net work done on the particle by the external force for the round trip for each of the four situations. (e) for which, if any, is the external force conservative?

Show him another sport or something

The answer is  a.first and third quarters 

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.