SOLUTION: A hemispherical bowl has an external radius of 18cm and is made of wood 3cm thick Calculate : A:the volume of wood in the bowl B:the mass of the bowl if the wood is of density 0

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Question 1148204: A hemispherical bowl has an external radius of 18cm and is made of wood 3cm thick
Calculate :
A:the volume of wood in the bowl
B:the mass of the bowl if the wood is of density 0.8g/cm3

Answer by Alan3354(69443) About Me  (Show Source):
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A hemispherical bowl has an external radius of 18cm and is made of wood 3cm thick
Calculate :
A:the volume of wood in the bowl
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Vol of a hemisphere = 2pi%2Ar%5E3%2F3
Find the volume of the hemisphere, then subtract the hemisphere with r = 12 cm
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B:the mass of the bowl if the wood is of density 0.8g/cm3
Multiply the volume by 0.8