The spectral, hemispherical absorptivity of an opaque surface and the spectral distribution of radiation incident on the

Question:

The spectral, hemispherical absorptivity of an opaque surface and the spectral distribution of radiation incident on the surface are depicted below. What is the total, hemispherical absorptivity of the surface? If it is assumed that ?? = ?? and that the surface is at 1000 K, what is its total, hemispherical emissivity? What is the net radiant heat flux to the surface?

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...