How Does Viscosity Affect Flow Rate According to the Hagen-Poiseuille Equation?

[oneomega]

Homework Statement

see the pic attached

Homework Equations

Newton's law of viscosity

The Attempt at a Solution

okay, i knew that , since the viscosity of the fuid in the second tube is low, it flows easily than the other, but i don't know which exact euation connects visocsity and flow rate. pls help me.

 

[Simon Bridge]

Do you know what a viscosity of 8.0cP means?
What does that figure tell you about how the fluid behaves?

http://physics.info/viscosity/

 

[Chestermiller]

Use Hagen-Poiseulle equation. The problem doesn't tell you which tube has the larger radius, so try the problem both ways and see which one matches the answer.

Chet