The active element of a certain laser is made of a glass rod 33.0 cm long and 1.60 cm in diameter. Assume the average coefficient of linear expansion...

The active element of a certain laser is made of a glass rod 33.0 cm long and 1.60 cm in diameter. Assume the average coefficient of linear expansion of the glass is equal to 9.00 10-6 (°C)-1. The temperature of the rod increases by 70.0°C.(a) What is the increase in its length? cm(b) What is the increase in its diameter? cm(c) What is the increase in its volume? cm3