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26-01-2022
Physics

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A girl uses 60 J of energy to move a box from the floor to a shelf. How much power does she use if it takes her 3 s to move the box?
1. 15w
2. 20w
3.90w
4.180w

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Respuesta :

26-01-2022

Answer: 2. 20W

Explanation: P = w/t

W = 60, t = 3s

60/3 = 20W

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