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A spherical bubble of air is introduced into a vein in the ankle. The diameter o this bubble is 0.5mm. As the bubble returns with the blood stream towards 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 X10^5 dyn/cm^2, what is the diameter of the bubble after it has risen 1.4m? Suppose that the density of blood is 1.05g/cm^3 and the only reason the pressure changes is due to the weight of the blood.

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