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Problems
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1
Given the masses and radii of Uranus, Neptune, and Pluto, calculate the gravity at the "surface" of each of the three planets. (Note: The "surfaces" of Uranus and Neptune are the visible cloud tops.)
2
Pluto has a temperature of about 50 K. Use Wien's law (Chapter 7) to calculate the wavelength at which Pluto is brightest.







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