Posted by **Leslie** on Thursday, November 15, 2012 at 12:50am.

What (decimal) fraction of a hypothetical spherical planet's volume does a planetary core with a radius of 70% of that planet's radius have? Round off answer to three decimal places. [Hint: the volume of a sphere is equal to 4/3 pi times the radius cubed]

- Physics - Astronomy -
**drwls**, Thursday, November 15, 2012 at 5:53am
(0.7)^3 = 0.343

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