© Department of Physics, University of Guelph.
Select the problem number or part you wish.
1. An artery of radius R1 carries
blood with an average linear speed v1. It divides into 3 smaller
arteries, each of radius
R2 = ½R1. What will be the speed v2
of the blood in the smaller arteries, relative to v1?
2. The capillary tube delivers water by viscous
flow from a reservoir and is 0.50 mm in diameter. The time taken to collect
50 cm3 of water was 7.0 minutes. How much longer would it
take to collect 50 cm3 of water if the only change is to decrease
the tube diameter to 0.30 mm?
|
The aorta in the diagram has a constriction which reduces its cross-sectional area from A to A/3. Assuming the blood has zero viscosity, calculate the pressure difference (PL - PS) in Nm-2, between the large and small regions of the aorta. |