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Physics, 17.06.2021 15:40 hastlingc

in amachine the load moves 2 metres when the effort moves 8 metres if an effort of 20 newton is used to raise a load of 60 newton ,what is the efficiency of the machine?​

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in amachine the load moves 2 metres when the effort moves 8 metres if an effort of 20 newton is used...

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