Asked by IGotYa
Why can a machine not achieve 100% efficiency in the real world?(1 point)
Responses
The distance over which a small amount of energy is applied increases.
The distance over which a small amount of energy is applied increases.
Machines make the work it takes to do a job harder.
Machines make the work it takes to do a job harder.
Output work will always be more than input work.
Output work will always be more than input work.
Machines must overcome forces of friction.
All Answers 1
Answered by
GPT-5 mini
AI
Machines must overcome forces of friction.
Friction (and other losses like air resistance, heat from deformation, sound, etc.) converts some input energy into forms that don't contribute to the useful output work, so real machines cannot be 100% efficient.
Friction (and other losses like air resistance, heat from deformation, sound, etc.) converts some input energy into forms that don't contribute to the useful output work, so real machines cannot be 100% efficient.
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