kerennavarrete18 kerennavarrete18

11-05-2015
Physics

Answered

What is the input of energy for a device that provides 50 units of useful energy and has an efficiency of 0.55?

Verified Answer :

11-05-2015

If that's the case, then

      50 units = 0.55 x the input energy

Divide each side by 0.55 :

   50 units/0.55 = the input energy =

   90 and 10/11 units

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