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the grinder was supplied with 22,486.1 watts of power. the grinder's fractional efficiency was .008. find the work done by the machine in 185 seconds.

2007-01-19 13:15:19 · 2 answers · asked by judykharrison 1 in Science & Mathematics Physics

2 answers

Work = Power x time

Power = input power x eff 22,486.1 x 0.008

Work = 22,486.1 x 0.008 x 185 sec

You'll have to look up the unit conversions to make sure you report the answer in work units. eq (ft-lbs or Newton-meters)

2007-01-19 13:23:56 · answer #1 · answered by Roadkill 6 · 0 0

Joules are ok.

2007-01-19 23:10:51 · answer #2 · answered by SAN 5 · 0 0

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