Suppose that the aorta has a radius of about 1.25 cm and that the typical blood velocity is around 30 cm/s
and that it has an average density of 1050 kg/m^3.
(a) What is the average blood velocity in the major
arteries if the total cross-sectional arca of the major
arteries is 20 cm^2,
(b) What is the total flow rate?
(c) If the blood in the circulatory system goes through
the capillaries, what is the total cross-sectional area
of the capillaries if the average velocity of the
blood in the capillaries is 0.03 cm/s?
(d) If a typical capillary has a cross-sectional area of 3
X 10^-11 m^2. about how many capillaries are there
in the human body?
(e) What is the kinetic energy per unit volume for blood
in the aorta, the major arteries, and the capillaries?
(f) If a capillary has an average length of 0.75 mm
what is the average time that a red blood cell
remains in a capillary?