1. The problem statement, all variables and given/known data A simple U-tube that is open on both ends is partially filled with a liquid of density (491 kg/m^3). Water is then poured into one arm of the tube, forming a column height of (8.2 cm). The density of the heavy liquid is (1000 kg/m^3). What's the difference , h, in the height's of the two liquids? 2. Relevant equations I'm guessing the relevant equations are directly to bernoulli's equation. P + (1/2)[tex]\rho[/tex][tex]\upsilon[/tex]^2 + [tex]\rho[/tex]gy P_1 - P_2 = [tex]\rho[/tex]g(y_1 - y_2) = [tex]\rho[/tex]gh 3. The attempt at a solution I figured two equations, two uknowns....but I have no idea really. it's not really the sum of the forces, it'd have to be a pressures setup...??? help?