A hollow spherical shell is made of brass

PHYSICS · Multi-part · CBSE · Physics · Gravitation · Gravitation

Problem

A hollow spherical shell is made of brass. The outer diameter of the shell is

10\,\text{cm}

and the inner diameter is

8\,\text{cm}

. The density of brass is

8.4\,\text{g\,cm}^{-3}

. (a) Calculate the volume of brass present in the shell in

\text{cm}^3

. (b) Find the mass of the shell in kilograms. (c) Determine its weight in newtons, taking

g = 9.8\,\text{m\,s}^{-2}

. (d) The density of water is

1000\,\text{kg\,m}^{-3}

. Will the brass shell float or sink in water? Show your calculation clearly.