A 206kg solid plastic sphere is anchored to a freshwater lake botton using two ropes (see below). Express your answers using appropriate mks units, Let =65+Pplastic=960kg/m3,8 p.water =1000kg/m3. (a) Determine the buoyant force on the sphere, (b) Determine the tension in the ropes. (c) If the ropes break and the sphere ends up fleating on the surface, what fraction of the sphere will be above water