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OpenStudy (anonymous):
All working systems lose useful work output to ______. A) themselves B) energy C) machines D) friction
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OpenStudy (anonymous):
I need the answer to this please
OpenStudy (espex):
What is the one force, that without there would be no movement, but this force also hinders movement.
OpenStudy (anonymous):
frction
OpenStudy (espex):
Exactly.
OpenStudy (anonymous):
Is that it or is there one more
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OpenStudy (anonymous):
only fric i guess
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