iyanna11 iyanna11

28-09-2016
Physics

Answered

describe the circumstances for which the output work would equal the input work in a machine

Verified Answer :

28-09-2016

That's only possible if there is absolutely zero friction in the machine.

In the real world, we can come close, with lubricants (oil, grease) and
streamlining, but we can never build anything with totally zero loss of
energy inside.

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