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OpenStudy (anonymous):
If you perform 10 joules of work lifting a 10-nquestion box from the floor to a shelf, how high is the shelf?
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OpenStudy (anonymous):
by formla work= force . displacement what's the mass of box ???
OpenStudy (anonymous):
Let's use the work-energy theorem. \[W = \Delta PE = mgh\]Note that \(mg = 10N\)
OpenStudy (anonymous):
yeah ... now we can easily calculate height h...
OpenStudy (anonymous):
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