Halliday, Resnick & Walker — Fluids: Problem Problem_41

What fraction of the volume of an iceberg (density \(917 \text{ kg/m}^3\)) would be visible if the iceberg floats (a) in the ocean (salt water, density \(1024 \text{ kg/m}^3\)) and (b) in a river (fresh water, density \(1000 \text{ kg/m}^3\))? (When salt water freezes to form ice, the salt is excluded. So, an iceberg could provide fresh water to a community.)