Blood flows through a section of a horizontal artery that is partially blocked by a deposit along the artery wall. as a hemoglobin molecule moves from the narrow region into the wider region, its speed changes from v2 = 0.800 m/s to v1 = 0.630 m/s. what is the change in pressure, p1 - p2, that it experiences? the density of blood is 1060 kg/m3.