A rectangular tank of internal width 6m is partitioned as shown in Figure 1 and contains oil and water. The oil's specific gravity is 0.72.
A) What must h be?
B) If the oil-water surface drops by a small distance (δ), what will be the rise in the free surface of water with air? (Hint: Use constant volume of water)
C) If a 1200-N block of wood is placed in flotation in the oil, what is the rise in the free surface of the water in contact with the air?