A high-performance material for the aerospace industry (k = 0.05 W m'k', C = 1500 J kg'K', p = 2300 kg m) is made in large slabs and requires curing at 500 K in a furnace. A particular slab (3 m long. 2m wide, and 16 mm thick) of the material just came out of the oven and is initially at 500 K. It cools by hanging in an upright position such that ambient air (at 300 K) is all around the slab and the 2 m direction is perpendicular to the floor. What is the temperature after 1 minute at a point 1 mm into the slab (measured perpendicular to the 3 mx 2 m surface, the thickness direction)? You may evaluate any property and/or dimensionless number involving the solid at the initial temperature of 500 K and assume that they don't change as the slab cools. Also assume a total pressure of 1 atm 16mm of 2m 3m