U-shaped tube-- how far does the mercury rise when water is poured into one side? 1. The problem statement, all variables and given/known data A U-shaped tube containing mercury is open to the air on both ends. Water is poured into one arm until the water column is 15.0 cm deep. How far upward from the initial position does the mercury in the right arm rise? 2. Relevant equations P = P0+density(gh) P = P0+(density*h)(g) 3. The attempt at a solution I am not sure how to go about this solution!