[ohaychminus]

How would one calculate power per unit area (W/mm^2) of the light of a blackbody emitter at 3000K?

I'm trying to use the Stefan-Boltzmann Law (q = (σ)(T^4)(A)), but I cannot get the answer for the life of me. q/A should equal (σ)(3000^4), but I'm not getting the correct answer.

A prod in the right direction would help immensely.

[Borek]

Show what you did, explain why it is wrong.