21st Century Astronomy
21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 8.3, Problem 8.3BCYU
To determine

The condition to which the planet will have a strong magnetic field according to the dynamo theory.

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Approximately how much mass (in kg) is in the liquid outer core? Region Percent Mass Temperature Density Crust 0.5% 500 K   Mantle 67.0% 3,000 K   Outer Core 30.8% 5,200 K 10.9 g/cm^3 Inner Core 1.7% 5,700 K
Some planets have very strong magnetic fields. What features must a planet have to cause this? a.both rapid rotation and a conducting liquid core b.only a rapid rotation c.only a liquid conducting core d.both a rapid rotation and a solid metallic core e.only a metallic core
: Mantle : Outer Core :: Crust : Core 7. 8 9 10 11 5
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