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Physics, 05.07.2020 14:01 reynamarie3
Suppose you spend 30.0 minutes on a stair-climbing machine, climbing at a rate of 85 steps per minute, with each step 8.00 inches high. If you weigh 150 lb and the machine reports that 690 kcal have been burned at the end of the workout, what efficiency is the machine using in obtaining this result?
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Suppose you spend 30.0 minutes on a stair-climbing machine, climbing at a rate of 85 steps per minut...
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