You have designed a raft made from cork with a very thin waterproof surface, that will be used in a zoo as a refuge for Hairy-Nosed Otters (each with a mass of 5.50 kg) in the middle of a lake. The raft is of circular shape with diameter 1.52 metres and has a uniform 1. thickness of 3.0 cm. Calculate: i. The volume of the raft that is submerged in the water when there are no otters resting on the raft, and The number of otters that can rest on the raft before it becomes completely submerged in the water, assuming that the otters distribute themselves evenly on i. the raft. Assume that the density of the water in the lake is 1,000 kg.m and the density of the cork is 240 kg.m.