posted by CrissyXD on .
A set of 12 identical metal ballbearings was made from 10 cm^3 of metal. Calculate the radius of each ball bearing.
Volume of one ball is (4/3)πr^3
so volume of 12 balls is 12(4/3)πr^3 = 16πr^3
so 16πr^3 = 10
r^3 = 10/(16π)
r = (5/(8π))^(1/3) = appr .58 cm