Can anyone help with these? Thank you!

Question: The weight of a fish in air is 200.0 N. When the fish hangs completely submerged in water, its apparent weight is 15.0 N. How would you find the fish's volume AND the fish's average density? Question: There are wood logs that have a density 600 kg/m3 and are used to build a raft. The mass of the raft is 300 kg. How would you find the weight of the maximum load that can be supported by the raft (so that it is 100% submerged. but still oating |