Задача 50333.

Find the temperature of the oven, if you know that out of the hole in her area of 6 cm ^ 2 is emitted 7 calories in 1 second. Read radiation close to blackbody radiation.

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the decision to write. I try to help.