katiebug197
28.06.2019 •
Physics
You input 75 j of work with a wedge. if the wedge does 65 j of useful work, what if the efficiency of the wedge ?
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Ответ:
Efficiency of wedge is the ratio of "work done by the machine to the work supplied to the machine".
Efficiency (η) = Work done by machine ÷ Work supplied
= 65 ÷ 75
= 0.86%
Efficiency of wedge is 86%
Ответ: