Question

Asked Apr 15, 2019

A cylindrical blood vessel is partially blocked by the buildup of plaque. At one point, the plaque decreases the diameter of the vessel by 70.0%. The blood approaching the blocked portion has speed ?0. Just as the blood enters the blocked portion of the vessel, what is its speed ?, expressed as a multiple of ?0?

?=

× ?0

Step 1

From the equation of continuity,

Step 2

As the plaque decreases the diameter by 70%, *d *’ = ...

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