Section 1

What is the pressure at the base of a cylindrical column of the same stone that is 3 feet in diameter and 60 feet high, if the density of the stone is 350 lb/sq ft? Solution. The diameter of the column is 3, so the radius is 1.5. The column is a cylinder, so its volume is (radius)2 height = 3.14 2.25 60 = 423.9 ft3. ................
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