Question
(a) What is the average metabolic rate in watts of a man who metabolizes 10,500 kJ of food energy in one day? (b) What is the maximum amount of work in joules he can do without breaking down fat, assuming a maximum efficiency of 20.0%? (c) Compare his work output with the daily output of a 187-W (0.250-horsepower) motor.
1. $122 \textrm{ W}$
2. $2.10 \times 10^6 \textrm{ J}$
3. $0.13$
Solution Video