1. The problem statement, all variables and given/known data A cube of 15 cm is floating at the surface between water and oil. The oil has a density of 810 kg/m3. If the cube floats so that it is 52% in water and 48% in the oil, what is the mass of the cube and what is the buoyant force on the cube? 2. Relevant equations Archimede's Principle Fb= densityfluidvfluidg 3. The attempt at a solution Not sure how to find the mass of the cube when only the height of one side is given?