Suppose you have just poured a cup of freshly brewed coffee with temperature 96°C in a room where the temperature is 20°C. (a) When do you think the coffee cools most quickly? What happens to the rate of cooling as time goes by? Explain. The coffee cools most quickly as soon as Correct: Your answer is correct. . The rate of cooling Correct: Your answer is correct. towards Correct: Your answer is correct. since the coffee approaches room temperature.

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.