# Determine the length of the tube

I need to determine the size of the tube having the flow rate of the liquid (water) which is 5 ml/min and assuming the diameter of the tube is 4mm. How can i determine the size of the tube that takes approx one minute for 5ml water to flow along the tube?

• There's a few ways to figure this out, depending on what exactly it is you care about. Is this a practical problem or a homework problem? Jun 14 '20 at 14:38

Volume of a cylinder is $$\pi*r^2*h$$.