A U-shaped tube is partially filled with water. Oil (which does not mix with water) is
poured into the left arm of the tube until the water-oil interface is at the midpoint of the
tube. Both arms of the tube are open to the air. If the oil in the left-hand
arm is olive oil
of
density 916 kg/m, and the top of the oil is 25.0 cm above the bottom of the tube, what
is
the height of the top of the water above the bottom of the tube?
(Hint: Poil Pwater)