You are using hard chromium electroplating on the rod of a very large hydraulic cylinder. Air at a temperature of 18°C (P = 1 atm) and a velocity of 18.2 m/sec flows in cross-flow over the circular rod that was just removed from the electroplating process. The rod has a diameter of 0.15 m, is 1.45 m long, and is at a temperature of 62°C.
a) Find the heat transfer rate from the rod to the air (q).
b) Calculate the drag force on the rod due to the air flow.