A metal sphere of radius r and specific heat S is rotated about an axis passing through its centre at a speed of n rotations per second. It is suddenly stopped and 50% of its energy is used in increasing its temperature. Find the increase in temperature of the sphere?

A metal sphere of radius r and specific heat S is rotated about an axi

1.	A metal sphere of radius r and specific heat S is rotated about an axis passing through its centre at a speed of n rotations per second. It is suddenly stopped and 50% of its energy is used in increasing its temperature. Find the increase in temperature of the sphere?
Answer» Answer :`(2PI^(2)N^(2)r^(2))/(53)`