Consider a u-tube whose arms are open to the atmosphere. now water is poured into the u-tube from one arm, and light oil = 790 kg/m3) from the other. one arm contains 70-cm-high water, while the other arm contains both fluids with an oil-to-water height ratio of 6. determine the height of each fluid in that arm.

Oil high= 73.14cm

Water high= 12.19cm

Explanation:

See the attached images.

The first important concept is that in an open tube at both ends the atmospheric pressure balances itself.

The pressure on both sides of the tube is the same in the equilibrium. The pressure of each fluid depends on its height and density.

it is stable as it is in group 0 which have full outer shells of electrons