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Back to 12.4 Viscosity and Laminar Flow; Poiseuille’s Law

12.4 Exercise 13

Avg difficulty 2.5

(a) Suppose a blood vessel’s radius is decreased to 90.0% of its original value by plaque deposits and the body compensates by increasing the pressure difference along the vessel to keep the flow rate constant. By what factor must the pressure difference increase? (b) If turbulence is created by the obstruction, what additional effect would it have on the flow rate?

OpenStax College Physics 2e, 12.4 Viscosity and Laminar Flow; Poiseuille’s Law, exercise 13

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.