I haven't done Physics in some time now and have forgotten how to do some rather simple calculations it seems. I am trying to calculate the volume of a cube (in cm^3) using the buoyant force of the cube when submerged into water. The given density of water I am using is 1.00g/cm^3 or 1000 kg/m^3. The mass of the cube is 90.6g, and 58.5g submerged. The buoyant force is 32.1g. Am I missing something here? Any help?