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The mass of Pluto is 1.2x10^22 kg and the radius is 1.15x10^6. What is the mean density. If the mean density of the surface material on Pluto is about that of ice(1000 kg/cubic meter), what, if anything can be deduced about the interior of Pluto from the results of your calculations?
Note: The volume of a sphere is (4pie/3)(Radius)^3

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