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Why can a machine be 100 percent efficient?

Emily Lee | 2023-06-08 22:48:37 | page views：1371
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Harper Cooper

Studied at Massachusetts Institute of Technology (MIT), Lives in Cambridge. Currently conducting research in the field of artificial intelligence.
Compound machines have low mechanical efficiencies because they have more moving parts and thus more friction to overcome. Machines are not 100% efficient because some of the work done by a machine is used to overcome friction. So work output is always less than work input.
2023-06-16 22:48:37
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Julian Davis

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Compound machines have low mechanical efficiencies because they have more moving parts and thus more friction to overcome. Machines are not 100% efficient because some of the work done by a machine is used to overcome friction. So work output is always less than work input.
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