## Essential University Physics: Volume 1 (4th Edition)

$-42^{\circ}F$ Thus, you will not be able to maintain a normal body temperature.
We first must find the change in temperature: $\Delta T = \frac{\Delta x H}{kA} = \frac{4 \times 10^{-2}\times 100}{.044 \times 1.5} = 61 K$ Subtracting this from room temperature, which is 293.15 Kelvin, we find: $T = 293.15 - 61 = 232.15 K$ This is the same as $-42^{\circ}F$.