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A diffuse surface is characterized by the spectral hemispherical emissivity distribution shown. Determine the surface hemispherical emissivity and the emissive power, in W/ m2, at

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A diffuse surface is characterized by the spectral hemispherical emissivity distribution shown. Determine the surface hemispherical emissivity and the emissive power, in W/ m2, at T=300,500, and 700K. At what wavelength, in m, does the peak spectral emission occur when the surface is at these temperatures

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