Answer:99.84 W
Explanation:
Given
Ambient temperature [tex]T_{\infty }=48^{\circ}C\approx 321\ K[/tex]
Temperature of skin [tex]T=37^{\circ}C\approx 310\ K[/tex]
Skin emissivity [tex]\epsilon =0.98[/tex]
Surface area [tex]A=1.30\ m^2[/tex]
Rate of heat transfer is [tex]Q=\epsilon A\sigma (T_0^4-T^4)[/tex]
[tex]Q=0.98\times 1.30\times 5.67\times 10^{-8}((321)^4-(310)^4)[/tex]
[tex]Q=99.84\ W[/tex]
