A hot metal cylinder initially maintained at 35 C immersed in a pool maintained at 27 C. Take the average convective heat transfer coefficient (hav) as 464.58 W/m2K. After 1.5 seconds, determine the temperature at the center of the hot metal cylinder if the thermal diffusity of the material is 0.042 m2/s and the thermal conductivity is 140 W/m.K. Please write your assumptions (You can assume that Biot number is less than 0.1).