Question #157395

An iPhone at rest on a 0.76 m tall desk has 1.296 J of gravitational potential energy. Calculate the mass of the iPhone.


1
Expert's answer
2021-01-22T17:02:48-0500

PE=mgh→PE=mgh\to


m=PE/gh=1.296/(9.8⋅0.76)=0.174(kg)=174(g)m=PE/gh=1.296/(9.8\cdot0.76)=0.174(kg)=174(g)


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Hong Kong #333484 on Dec 2022