Question

No simple machine is 100 persentange efficient? why

Answer 1

Answer:

The percentage of the work input that becomes work output is the efficiency of a machine. Because there is always some friction, the efficiency of any machine is always less than 100 percent.

Explanation:

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Answer 2

Answer:

Here's Your Answer

Explanation:

★A machine cannot be 100 percent efficient because output of a machine is always less than input. A certain amount of work done on a machine is lost to overcome friction and to lift some moving parts of the machine.

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