A satellite of mass m is in a stable circular orbit around Earth at a distance 1R from the center of Earth. The mass of Earth is eM. (a) Derive an expression for the following in terms of m, 1R, eM, and fundamental constants, as appropriate. i. The orbital speed 1u of the satellite ii. The total energy of the satellite in this orbit, assuming gravitational potential energy to be zero at an infinite distance from the center of Earth

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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.

Perpendicular to the wave motion