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Why can a machine be 100 percent efficient 2024?
Questioner：Amelia Wilson 2023-06-08 22:48:37
The most authoritative answer in 2024
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Oliver Lee——Works at the International Fund for Agricultural Development, Lives in Rome, Italy.
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.read more >>+119962023-06-14 22:48:37
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