The doctor is trying to decide what type of “feather†materialto give his creations so that they keep warm while sleeping in thewinter. Given the following data calculate the conductive heat flux(W) for the different “feather†materials. Material “A†has a K of0.036 W/mK and increases the bird’s x by 2.769 x 10-3 m.Material “B†has a K of 0.17 W/mK and increases the bird’s x by1.308 x 10-2 m. The bird’s internal temperature is 311.0K (we are assuming that they are endothermic) and the temperatureof the ground is 260.0 K. The distance from the exterior of thebird’s skin to its core is 0.75 m. When the animal is sleeping thesurface area of the bird that touches the ground is 1.76m2. Which of these materials results in the smallestloss of heat due to conduction?    Â
