A spherical cannonball made of an iron alloy has a density of 7.86 g/cm3, and weighs 22.12 pounds.

A spherical cannonball made of an iron alloy has a density of 7.86 g/cm3, and weighs 22.12 pounds. On the other hand, spent uranium (from processing which removes the commercially important rare isotope) has a density of 19.05 g/cm3. What would be the diameter, in cm, of a uranium round shot which has exactly twice the weight as the iron ball described above?1 pound = 0.4536 kg.