A stainless steel slab (k 5 14.9 W/m · K and a = 3.95 × 10^-6 m²/s) and a copper slab (k = 401 W/m · K and α = 117 × 10^-6 m²/s) are subjected to uniform heat flux of 10 kW/m² at the surface. Both slabs have a uniform initial temperature of 20°C. Using EES (or other) software, investigate the effect of time on the temperatures of both materials at the depth of 8 cm from the surface. By varying the time of exposure to the heat flux from 5 to 300 s, plot the temperatures at a depth of x = 8 cm from the surface as a function of time.