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OpenStudy (anonymous):
The efficiency of a machine whose work output is one half its work input would be ______. A) 2 B) 100% C) 150% D) 4 E) 50% F) 200%
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OpenStudy (anonymous):
Help please!!
OpenStudy (whpalmer4):
well, if you put 2 units of work into the machine, and only get 1 out, what is the efficiency?
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