Abullet fired from a rifle travels at mach 1.92 i. e., vs va = 1.92 . the velocity of the bullet is vs and the velocity of sound in air is 343 m/s. what angle does the shock front make with the path of the bullet? answer in units of ◦

Sorry i don’t know what to do

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.