Question: ( a ) Calculate the mechanical work done by a 6 8 kg person who climbs a flight of stairs corresponding to a 3 .

(a) Calculate the mechanical work done by a 68 kg person who climbs a flight of stairs corresponding to a 3.5 m rise.
(b) Suppose this person accomplished the climb with an efficiency of 10.5%. Calculate the heat loss during this process, Q.

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