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Physics 14 Online
OpenStudy (anonymous):

Which of the following describes a compound machine? A. A compound machine is a simple machine. B. A compound machine is harder to work. C. A compound machine is two or more simple machines working together. D. A compound machine requires more work to use.

OpenStudy (anonymous):

Two or more simple machines working together. That seems the only logical choice.

OpenStudy (anonymous):

thnk u

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