Question

What is your body's metabolic power use while running the generator to power your laptop charger, given the typical efficiency for such tasks? Assume 100% efficiency for the generator.

Answer 1

Answer: 1 W = 1 J / s 1 cal = 4.18 J P = 90 W E 90 W --- 1h = 90 * 3600 = 324000 J E = 324000 / 4.18 = 77512 calories

Answer 2

Answer: 1 W = 1 J / s 1 cal = 4.18 J P = 90 W E 90 W --- 1h = 90 * 3600 = 324000 J E = 324000 / 4.18 = 77512 calories