972eqw2f9c 972eqw2f9c

16-12-2020
Physics

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What is the height of a shelf that has 15 kg objects with 450 J of gravitational potential energy

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sierra291096 sierra291096

16-12-2020

PE=mgh
450J=15kg•9.8m/s2squared
450=147h
—— ——
147 147

h=3.0612m

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