1. The problem statement, all variables and given/known data A less-dense liquid of density ρ1 floats on top of a more-dense liquid of density ρ2 . A uniform cylinder of length l and densityρ, with ρ1< ρ<ρ2, floats at the interface with its long axis vertical. What fraction of the length is in the more-dense liquid? 2. Relevant equations F=ρVg 3. The attempt at a solution I thought I could use Vf=ρ/ρ2 but the final answer should include ρ1 and possibly l. Any help would be appreciated.