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Physics 18 Online
OpenStudy (anonymous):

Which of the following is a compound machine? A. pry bar B. water faucet handle C. sliding door D. toothbrush.

OpenStudy (ujjwal):

All others seem to be simple machine except this one. C. sliding door

OpenStudy (shane_b):

I agree...C.

OpenStudy (anonymous):

Thank you guys!

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