To solve this problem, we first need to define density.
Density is the ratio of mass and volume of a substance.
Density is expressed as:
, where ρ is the density, m is the mass, and V is volume.
From this equation, we can get the mass of the sphere to be:
Two spheres are cut from a certain uniform rock. One has radius 4.50 cm. The mass of the other is five times greater. Find its radius.
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