A solid sphere of diameter 1m and average density of 780 kg/m3 is completely submerged in a tank filled with water. It is held in place by a string attached to the bottom of the tank, as shown. The mass distribution inside the sphere is non uniform, so the center of mass lies at a distance 0.50R from the geometric center. Suppose that the sphere is attached rigidly to a massless horizontal rod of length 0..75 m and negligible volume oriented along the line formed by the center of mass and the geometric center of sphere as shown. The rod is attahced on the side of the sphere nearer the center of mass, and the far end of the rod is attached to the fixed pivot. What is the buoyant force acting on the sphere?