Question: Two stone spheres are cut from a certain uniformly dense rock. The first sphere has a mass of 4 . 7 kg and a radius

Two stone spheres are cut from a certain uniformly dense rock. The first sphere has a mass of 4.7 kg and a radius of 3.2 m. The mass of the second sphere is 2 kg.
 a. What is the density of the spheres?
b. What is the radius of the second sphere?

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