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Q1: Consider a 15-cmx15-cmx15-cm cubical body at 800 K suspended in the air. Assuming the body closely approximates a blackbody., determine (a) the rate

Q1: Consider a 15-cmx15-cmx15-cm cubical body at 800 K suspended in the air. Assuming the body closely approximates a blackbody., determine (a) the rate at which the cube emits radiation energy in Watts and (b) the spectral blackbody emissive power at a wavelength of 6 m.

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