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OpenStudy (anonymous):
Sam did 480 J of work when moving a bag with a mass of 38 kg. He did the work in 4 minutes. What was the power output? 442 W 20 W 120 W 2 W
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OpenStudy (anonymous):
Power is Joules/sec. Translate 4 mins to seconds.
OpenStudy (anonymous):
p=w/t where w=work in J t=time in sec p=480/(4*60) w
OpenStudy (anonymous):
soooo 2w?
OpenStudy (anonymous):
Yep.
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