Calculate the rate, in watts, at which this heat transfer through radiation occurs (almost entirely in the infrared) from 1.0 m2 to the atmosphere at night. assume the emissivity is 0.90, the temperature of the surface of the earth is 15°c, and that of outer space is 2.7 k. q/δt = 376.4|

Explanation:

As we know that heat transfer is given as

so we will have

now we will have

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

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