Question

Select the correct answer.
How does the law of conservation of energy apply to machines?
A.
Machines create energy from scratch.
B.
Machines consume energy until no energy remains.
C.
Energy transferred to a machine equals energy transferred from it.
D.
Engineers break the law of conservation of energy by using machines.

Answer 1

Optation. C is right answer

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Answer 2

The correct answer is option C. Energy is transferred to a machine equals energy transferred from it.