(a) What is the present energy density in the cosmic background radiation, and (b) what waws it when it was emitted at a temperature of 3000K?What is the present energy density in the cosmic background radiation?
I'm sure you'll think this answer is a waste of time but if i had to answer a question like that on a test, I would put A) Big Mac to the 14th power and B) Apple pie squared/ pi x 6.39519. I'm sorry i couldn't answer your question but i sure hope i brightened your day! :P
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