lambobacon9027
20.08.2019 •
Physics
Elevators lift loads by employing a motor and and a complex system of pulleys. if the elevator converts all the energy used to work, how many joules would be required to lift a 2,500 n load 15 m
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Ответ:
since its a one-dimensional problem it can be plugged straight into the equation above:
W = 2500N x 15 m
W =37500 J = 37.5 KJ
It would take 37.5 kilo-joules of energy
Hope this helps :P
Ответ:
It’s the product of 7 x 7. The square root of 49 is 7
Explanation:
It’s the product of 7 x 7. The square root of 49 is 7