Chemistry help please. What is the mass?

Lucho

New member
Assuming that a planet is a perfect sphere
with a circumference of 22074 km and an average
density of 2.41 g/mL, what is its approximate
mass? The circumference of a sphere is
2 pi r where r is the radius of the sphere, the
volume of the sphere is 4/ 3 pi r^3, and 1 metric
ton = 1000 kg. Answer in units of metric ton.
 
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