The average rate at which energy is conducted outward through the ground surface in
Chapter 18, Problem 72(choose chapter or problem)
The average rate at which energy is conducted outward through the ground surface in North America is 54.0 mW/m2 , and the average thermal conductivity of the near-surface rocks is 2.50 W/mK. Assuming a surface temperature of 10.0 C, find the temperature at a depth of 35.0 km (near the base of the crust). Ignore the heat generated by the presence of radioactive elements.
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