A hollow spherical shell has external radius and internal radius

PHYSICS · Single correct · GCSE · Physics · Particle Model of Matter · Particle Model of Matter

Problem

A hollow spherical shell has external radius

7\,\text{cm}

and internal radius

5\,\text{cm}

. The material of the shell has density

8\,\text{g/cm}^3

. Find the mass of the shell in kilograms (take

\pi = 3.14

). (a)

9.8\,\text{kg}

(b)

11.3\,\text{kg}

(c)

7.3\,\text{kg}

(d)

0.73\,\text{kg}