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Wondering if a machine could be said to be 100% efficient

by Rinnn62
Tags: 100%, efficient, machine, wondering
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Rinnn62
#1
Mar29-13, 10:57 AM
P: 24
I was just wondering if a machine could be said to be 100% efficient if for example it gave out heat, light and sound but all I these types of energy are wanted and not wasted?
Thanks for the replies
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mfb
#2
Mar29-13, 11:12 AM
Mentor
P: 11,602
If you want every output: Sure. Electric heating is basically 100% efficient, for example.
Add tiny amounts of gravitational waves, if there are moving parts ;).


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