Are Machines 100% Efficient

Are machines 100% efficient

Good Day

Question:

Are machines 100% efficient?

Answer:

machine are not 100% efficient but simple machine or ideal machine have a mechanical efficiency of 100% like lever and pulley.

Ideal machine like lever and pulley (simple machine), have equal power input and power output that have no losses of energy in the process. Most machine generates heat which is a waste energy making the power input not equal to the power output which makes its efficiency less than 100%.


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