The following problems consider the temperature and density of Eaith’s layers.
439. [T] The temperature of Earth’s layers is exhibited in the table below. Use your calculator to fit a polynomial of degree 3 to the temperature along the radius of the Earth.
Then find the average temperature of Earth. (Hint: begin at 0 in the inner core and increase outward toward the surface)
Layer | Depth from center (km) | Temperature °C |
Rocky Crust | 0 to 40 | 0 |
Upper Mantle | 40 to 150 | 870 |
Mantle | 400 to 650 | 870 |
Inner Mantel | 650 to 2700 | 870 |
Molten Outer Core | 2890 to 5150 | 4300 |
Inner Core | 5150 to 6378 | 200 |
Source: http://www.enchantedlearning.com/siibjects/ astronomy/planets/earth/I nside.shtml
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