10. An object is moving around a circle of radius 1.5 meters at a constant velocity of 7 meters per
second. The frequency of the motion, in revolutions per second, is
A. 0.24
B. 0.53
C. 0.67
D. 0.74
E. 0.98

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Iknow the first part it is the average star i am not 100% sure

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.

Newtons laws of motion