A hollow plastic sphere is held below the-surface of a fresh-water lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.650 m3 and the tension in the cord is 900 N. (a) Calculate the buoyant force exerted by the water on the sphere. (b) What is the mass of the sphere? (c) The cord breaks and the sphere rises to the surface. When the sphere comes to rest, what fraction of its volume will he submerged?

Solution 30E Step 1 : Introduction : In this question, we need find the buoyant force exerted by the water on the sphere In the part we need to find the mass of the sphere In the third part, we need to fraction of sphere that is submerged in the water Data given Volume of sphere V = 0S650 m 3 Tension of the cord T = 900 N