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06-03-2019
Physics

contestada

What is the efficiency of a tractor that has a work output of 300j and a work input of 400j

Respuesta :

16-03-2019

Answer;

= 75 %

Explanation;

To measure efficiency of a machine, compare the work output to work input.

Efficiency = Work output/ work output × 100 %

= 300/400 × 100

= 75 %

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