The flow rate of blood through a 2.00×10-6 -m -radius capillary is 3.80×109 cm3/s . (a) What is the speed of the blood flow? (This small speed allows time for diffusion of materials to and from the blood.) (b) Assuming all the blood in the body passes through capillaries, how many of them must there be to carry a total flow of 90.0 cm3/s ? (The large number obtained is an overestimate, but it is still reasonable.)

The flow rate of blood through a 2.00×10-6 -m -radius capillary is 3.80×109 cm3/s . (a) What is the speed of the blood flow? (This small speed allows time for diffusion of materials to and from the blood.) (b) Assuming all the blood in the body passes through capillaries, how many of them must there be to carry a total flow of 90.0 cm3/s ? (The large number obtained is an overestimate, but it is still reasonable.)