Question

give answer in fill in blanks.the output energy of an ideal machine is always ________ to input energy.​

Answer 1

Efficiency of a machine is always less than 100% as output energy is always less than the input energy, because some energy is lost to overcome friction.

Answer 2

Answer:

give answer in fill in blanks.the output energy of an ideal machine is always ________ to input energy.

Different......

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