1. The problem statement, all variables and given/known data The manometer illustrated in Fig. Q2 contains water and kerosene (specific gravity of 0.82) as indicated. With both ends of the U-tube open the height H0 =20 mm. (i) Determine the height, h , when both ends of the tube are open.  (ii) Determine the new value of H0 when a gauge pressure of 98 Pa is applied to the right end of the U-tube.  2. The attempt at a solution I can do part (a), getting an answer of 91.1mm. However, I am stuck on part (b).. I assume I cannot keep h constant and see the variation in Ho with the added pressure? I am unsure how to work out the two unknowns h and Ho with only the one equation.