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Physics 7 Online
OpenStudy (anonymous):

Friction always produces__________ which is unusable_________.

OpenStudy (anonymous):

friction is a contact force if you want to reduce the effect of friction you have so many ways!!!!! friction help us to move , it cause charges , effect of polarization and induction came after friction or is because of friction

OpenStudy (anonymous):

I believe the answer to your question is Friction always produces Heat which is unusable energy. No doubt this is a definition in your class notes.

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