14.2 Exercise 12

Following vigorous exercise, the body temperature of an 80.0-kg person is $\text{40} . 0º \text{C}$. At what rate in watts must the person transfer thermal energy to reduce the the body temperature to $\text{37} . 0º \text{C}$ in 30.0 min, assuming the body continues to produce energy at the rate of 150 W? $\left(\text{1 watt }=\text{ 1 joule}/\text{second or 1 W }=\text{ 1 J}/\text{s} \right)$.