The winning time for the 2005 annual race up 86 floors of the empire state building was 10 min and 49 s . the winner's mass was 60 kg . if each floor was 3.7 m high, what was the winner's change in gravitational potential energy? if the efficiency in climbing stairs is 25 %, what total energy did the winner expend during the race? how many food calories did the winner "burn" during the race? what was the winner's metabolic power in watts during the race up the stairs? express your answer using two significant figures.
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Physics, 21.06.2019 18:00
This question is worth 54 points ! rock falls from a ledge to the ground what energy conversion occurs during this process a potential to kinetic b kinetic to potential c thermal to mechanical d chemical to mechanical
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Physics, 22.06.2019 00:10
A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?
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Physics, 22.06.2019 10:10
Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.
Answers: 1
The winning time for the 2005 annual race up 86 floors of the empire state building was 10 min and 4...
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