Physics, 16.07.2019 05:20 jesuslovesusall3

How much power does a sphere with a radius of 10 cm radiate into empty space if is has an emissivity of 1.0 and is kept at a temperature of 400 k? (σ = 5.67 × 10-8 w/m2 ∙ k4)

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How much power does a sphere with a radius of 10 cm radiate into empty space if is has an emissivity...