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OpenStudy (anonymous):
why is earth considered a closed system?
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OpenStudy (aaronq):
what is a "closed system"?
OpenStudy (shikamaru11):
Closed system we can simply consider it as From point A then back to A so the total work done is zero MAybe I'm wrong Sir @aaronq your words ?
OpenStudy (aaronq):
A closed system is one that can exchange energy with the surroundings but doesn't exchange matter - technically stuff (meteors) are falling into earth, so it's not really a closed system
OpenStudy (shikamaru11):
well Sir a nice one but if we neglect the gravity then? @aaronq
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