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OpenStudy (anonymous):
Which statement best explains why machines are inefficent? A) Energy Transfer in compound machines gives off electrical waste B) During energy transfer in machines, some energy is always lost as heat C) Balanced forces in moving machines produce waste in the form of steam D) When work is done by machines, gravity always causes a decrease in force.
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OpenStudy (praetorian.10):
supply Frequency.............?
OpenStudy (aaronq):
B) During energy transfer in machines, some energy is always lost as heat
OpenStudy (anonymous):
b
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