junukc48 junukc48
  • 04-07-2021
  • Physics
contestada

) Efficiency of a lever is always less than hundred percent.​

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olodudecomfort1
olodudecomfort1 olodudecomfort1
  • 04-07-2021

Yes. Because it opposes the law of friction

I hope this helps.

Explanation:

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