Sound of frequency 372.7 hz propagates in phase from two loudspeakers; the speed of sound in air is 343.5 m/s. the first loudspeaker is at the origin, and the second is at 8.8m·(j is the unit vector in the y-direction) a person starts on the x-axis at a very long distance from the loudspeakers and walks directly towards the loudspeaker at the origin. how far is the person from the origin the second time they encounter a loud sound (constructive interference)?

Ithink it’s cancer risk

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.