1. The problem statement, all variables and given/known data Given a cross sectional area of A=10cm^2 1kg each of water ( ρ = 1000 kg/m^3 ), olive oil ( ρ = 800 kg/m^3 ), and mercury ( ρ = 13600 kg/m^3 ) are poured, and allowed to settle. What is the pressure at the bottom of the pipe? 2. Relevant equations F=PA P=Po+ρgd 3. The attempt at a solution I have set up a free body diagram of the system with ∑Fy= PA-mg-PoA= o, but I'm not sure what to do at this point.