Temos os meios a e b. a luz no meio b com ângulo de incidência de 45º e n=v2, para o meio a com n=v3.
determine:
a) o ângulo de refração;
b) a velocidade da luz no meio a.

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.

Answermake them get very hot and over time wear them out;

If the woman is just hanging off the bar then i think each arm will support 350n  and if she accelerates 1400n