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Chemistry, 11.11.2019 23:31 sascsl7973

Aperson pushes a box up a ramp that is 3m long and 1 m high if the box has a mass of 20 kg and the person pushes with a force of 80 n what is the efficiency of the ramp

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Aperson pushes a box up a ramp that is 3m long and 1 m high if the box has a mass of 20 kg and the p...
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