mbhtkn4508 mbhtkn4508
  • 02-10-2017
  • Physics
contestada

When the useful energy output of a simple machine is 100 j, and the total energy input is 200 j, the efficiency is _______?

Respuesta :

Mstief Mstief
  • 03-10-2017
the energy doubled, so (200J/100J)100=200%
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