Question

a machine has efficiency of 70% explain the statement as clearly as possible​

Answer 1

It means the machine can convert only 70% of given energy into work remaining 30% will be wasted to overcome the friction.

For example If you supply 100J of energy to the machine it does 70J of work and 30 J is wasted to overcome the friction ...

Answer 2

Answer:

yes it is possible because 100%-70%=30%

Explanation:

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