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The temperature within the Earth's crust increases about 1.0 C∘ for each 30 m of depth....

The temperature within the Earth's crust increases about 1.0 C∘ for each 30 m of depth. The thermal conductivity of the crust is 0.80 W/C∘⋅m.

a)Determine the heat transferred from the interior to the surface for the entire Earth in 7.0 h. Answer for this is : 3.4×1017

b)Compare this heat to the amount of energy incident on the Earth in 7.0 h due to radiation from the Sun.

Am not sure how to do part B. Any help is appreciated.

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Answer #1

Solar 1fraiance: Average value AQ -1 36×10 -- dAdt Amount of heat transferred: For earth dQ, Adt -4x3.14(1.36x10%)(6.371x10°)

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