Physics, 23.01.2020 21:31 greystokey
You set your stationary bike on a high 80-n friction-like resistive force and cycle for 30 min at a speed of 8.0 m/s . your body is 10% efficient at converting chemical energy in your body into mechanical work.
a.) what is your internal chemical energy change?
b.) how long must you bike to convert 3.8×105 j of chemical potential while staying at this speed? (this amount of energy equals the energy released by the body after eating three slices of bread.)
Answers: 3
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