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.
Answers: 1
Other questions on the subject: Physics
Physics, 22.06.2019 11:00, kylieweeks052704
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 1
Physics, 22.06.2019 18:30, Natasha019
Which word expression describes how much to calculate pressure
Answers: 1
Physics, 23.06.2019 02:40, smack2045
An air standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes. 1-2 isentropic compression 100 kpa and 22°c to 600 kpa 2-3 v=constant heat addition to 1500 k 3-4 isentropic expansion to 100 kpa 4-1 p=constant heat rejection to initial state (a) show the cycle on p-v and t-s s (b) calculate the net work output per unit mass (409 kj/kg) (c) determine the thermal efficiency (47.9%)
Answers: 1
You know the right answer?
The winning time for the 2005 annual race up 86 floors of the empire state building was 10 min and 4...
Questions in other subjects:
Mathematics, 07.05.2020 05:57
