Question

Using Stefan-Boltzmann and Wien laws, estimate how many Watts a cow emits in thermal radiation and at what ‘color’ (wavelength) most of it is. Think the cow as a sphere (good approximation J) of 1.5 meters radius and 310 K temperature and do the calculation by comparing the cow to the Sun (…). The Sun emits P = 4 10²⁶Watts, its radius is 6.95 10 ^8⁹m and its surface temperature T(Sun) = 5,800 K.

Answer 1

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