Water Demo

goredsox14

17th July 2007 - 12:21 AM

if a tube is filled with water and a small hole is made....what forces account for the rate at which the water exits the tube? thanx for any help!

fizzeksman

17th July 2007 - 01:19 AM

The height of the column of water above the hole will determine the pressure. The force responsible is hydraulic pressure caused by gravity. The size of the hole will determine the escapement volume, or the amount of time required to empty the tube. As the column of water falls the pressure of the stream exiting through the hole decreases.

PhysOrg scientific forums are totally dedicated to science, physics, and technology. Besides topical forums such as nanotechnology, quantum physics, silicon and III-V technology, applied physics, materials, space and others, you can also join our news and publications discussions. We also provide an off-topic forum category. If you need specific help on a scientific problem or have a question related to physics or technology, visit the PhysOrg Forums. Here you’ll find experts from various fields online every day.