Poiseuille's Law describes flow rate through a cylinder. Which of the following statments is correct?Question 5Select one:a.Poiseuille's Law applies to laminar flow.b.Poiseuille's Law only applies in the absence of friction.c.Poiseuille's Law applies to a tube with varying radius.d.The flow rate is proportional to the length of the tube.e.The liquid flows due to its weight, and the effect of the flow is to cause a pressure difference between the ends of the tube.

Poiseuille’s Law describes the pressure drop in an artery of length L and radius r due to the viscosity of blood, where η is the coefficient of viscosity for the fluid and Q is the volume flow rate. According to Poiseuille’s Law, pressure drop would be MOST affected by:A.increasing the coefficient of viscosity by a factor of two.B.increasing the volume flow rate by a factor of two.C.increasing length of the artery by a factor of two.D.reducing the radius of the artery by a factor of two.

When the radius of the flow tube is decreased, the _______.Question 18Select one:A.pressure gradient decreasesB.fluid flow rate decreasesC.fluid flow rate and the pressure gradient decreaseD.fluid flow rate increasesE.friction decreases

Which of the statements are true?Group of answer choicesFor flow in a pipe, the velocity is the same across the pipe cross section.Mass flow rate can be defined as the multiples of density, pipe average velocity, and cross section area normal to the velocity.A volume flow rate is defined as the volume of the fluid flowing through a cross section per unit time.A mass flow rate into control volume is proportional to the velocity component parallel to the cross sectional area.Mass flow rate is defined as the amount of mass flowing through a cross section per unit time.

4. The speed of blood flow in an artery is given by Poiseuille’s law. The law says that blood flow is fastest in thecenter of the artery and slower at the edges. We can express this asS(r) =C(R2−r2).In this equationRis the fixed radius of the artery andSis the blood flow speed at a distancerfrom the centerof the artery. In a typical human aortaR= 1.4 centimeters and the peak blood flow velocity is 90 centimetersper second.(a) Calculate the constantC.1

Which of the following result(s) in an increase in fluid flow rate?Question 6Select one:A.increase in pressureB.increase in pressure and decrease in radius diameterC.decrease in radius diameterD.increase in pressure and increase in radius diameterE.increase in radius diameter