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Physics 21 Online
OpenStudy (anonymous):

the total work done in lifting a typical high school physics textbook a vertical distance .1 meter is approximately a.15 J b. 1.5 J c. 15 J d. 150 J

OpenStudy (anonymous):

one pound is about 0.5 kg, W = m g h = (0.5 kg) (10N/kg) (0.1m) = 0.5 J Must have started with a three-pound book!

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