The volume flow rate in an artery supplying the brain is 4.00 10-6 m3/s.
(a) If the radius of the artery is 4.80 10-3 m, determine the average blood speed.
m/s
(b) Find the average blood speed at a constriction in the artery if the constriction reduces the radius by a factor of 8. Assume that the volume flow rate is the same as that in part (a).
m/s