Question

If a runner's power is 400 W as she runs, how much chemical

Answer 1

Answer:

$240 kJ$

Explanation:

A Watt is defined as a Joule per second. 10.0 minutes, converted in seconds, are $10.0*60 =600s$. At this point, we just multiply the two numbers: $400 J/s * 600.0s = 240 000.0J$