An alluminum ball 0.5 cm in diameter initially at 250 C is dropped into a large tank of fluid (with Tsat=100 C), which is maintained at 25 C. The average heat transfer coefficient is approximately equal to 3000 W/m^2 C for boiling and 250 W/m^2 C for nonboiling. Determine the temperature of the ball after 10 seconds? (Properties of aluminum, density=2700 kg/m^3, Cp=896 J/kg C, k=236 W/m C and gamma=k/density *Cp)