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Suppose you spend 30.0 minutes on a stair-climbing machine, climbing at a rate of 65 steps per minute, with each step 8.00 inches high. If you weigh 150 lb and the machine reports that 750 kcal have been burned at the end of the workout, what efficiency is the
machine using in obtaining this result?
%
If your actual efficiency is 0.16, how many kcal did you really burn?
kcal

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