Question

(there are 3 quetions) how is heat being transfered in:

Answer 1

Answer:

Since I already answered the first two I will tell you the third one!

In general, the radiation heat transfer from one surface to another is the radiation leaving the first surface for the other minus that arriving from the second surface. Radiation heat transfer is mediated by electromagnetic radiation, known as thermal radiation, that arises due to the temperature of a body.

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Answer 2

The anwser is number 3 which is radiation!!