Multiple Choice
Classify the following hypothetical perpetual motion machines as being perpetual motion machines of the first kind or the second kind (B) .
-(d) Compressed air from a tank blows on a windmill. The windmill is connected to a generator that produces electrical energy. Part of that electrical energy is used to compress more air into the tank.
A) first kind}
B) second kind
Correct Answer:

Verified
Correct Answer:
Verified
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