A spherical bubble of air is introduced into a vein in the ankle. The diameter of this bubble is 0.5 mm. As the bubble returns with the blood stream toward the heart, the pressure in the blood decreases due to the decreasing height of the column of blood above it. If the pressure in the ankle is 2.77 x 105 dyn/cm2, what is the diameter of the bubble after it has risen 1.4 m?
Assume that the density of blood is 1.05 g/cm3 and that the only reason the pressure changes is due to the weight of the blood.