Premium A student fires a cannonball horizontally with a speed of 38.0m/s from a height
of 58.Om. Neglect drag.
What was the cannonball's initial horizontal speed?
unit
What was the cannonball's initial vertical speed?
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How long did the ball remain in the air?
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How far from the base of the building will the ball land (measured along the
ground)?
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What do you need on

Then the answer would be d then

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.