VELOCITY OF EFFLUX

Demo Number	115
Location	Shelf 16
Description	Fill this tube with water. The water will flow out of its 3 evenly spaced 3 mm holes.
Related Demos	9020
Tips	Plugging all holes while filling the tube requires 3 hands or some sort of closure over the holes (tape) that can be quickly removed before the water drains. The pump (demo 9020 on shelf 15) is not strong enough to keep all three holes flowing at the same time. So, plug the two bottom holes to allow the water to fill. Then release (watch out the water from the second hole goes far) and repeat. There is a Submersible Water Pump located on shelf 15. The setup is as pictured. You will need some lab stands and clamps.

Colorado State University