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# Assume that the Total Surface Area of a Human Body is 1.6 M2 and that It Radiates like an Ideal Radiator. Calculate the Amount of Energy Radiated per Second by the Body If the Body - Physics

#### Question

Assume that the total surface area of a human body is 1.6 m2 and that it radiates like an ideal radiator. Calculate the amount of energy radiated per second by the body if the body temperature is 37°C. Stefan constant σ is 6.0 × 10−8 W m−2 K−4.

#### Solution

Given:
Area of the body, A = 1.6 m2
Temperature of the body, T = 310 K
From Stefan-Boltzmann law,

"Energy radiated"/"Time" = sigma"AT"^4

Here, A is the area of the body and sigma is the Stefan-Boltzmann constant.
Energy radiated per second = 1.6 × 6 × 10−8 × (310)4
=  886.58 ≈ 887 J

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Solution Assume that the Total Surface Area of a Human Body is 1.6 M2 and that It Radiates like an Ideal Radiator. Calculate the Amount of Energy Radiated per Second by the Body If the Body Concept: Heat Transfer - Radiation.
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