SOLUTION: a solid sphere of radius 4cm weighs 32kg. find the weight of a shell of the same material whose internal and external radii are 3cm and 5cm
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Question 756343: a solid sphere of radius 4cm weighs 32kg. find the weight of a shell of the same material whose internal and external radii are 3cm and 5cm Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! a solid sphere of radius 4cm weighs 32kg. find the weight of a shell of the same material whose internal and external radii are 3cm and 5cm
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Weight = density*Volume
Vol = k*r^3 = 64k
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shell of the same material whose internal and external radii are 3cm and 5cm
--> k*(5^3 - 3^3) = 98k
32/4^3 = Weight/98
Weight = 196 kg
