Two parallel, aligned disks, \(0.35 \mathrm{~m}\) in diameter and separated by \(0.1 \mathrm{~m}\), are located in a large room whose walls are maintained at \(300 \mathrm{~K}\). One of the disks is maintained at a uniform temperature of \(600 \mathrm{~K}\) with an emissivity of 0.8 , while the back side of the second disk is well insulated. If the disks are diffuse, gray surfaces, determine the temperature of the insulated disk.