Hydrostatic Pressure Explained: Why Does Water Flow & Stop?

AI Thread Summary
When a tube is submerged in a bucket of water and air is blown into one end, water flows out due to the pressure difference created. This pressure difference causes the water to move, similar to how a spring reacts when compressed and released. When the tube is raised, the water stops flowing because the hydrostatic pressure equalizes, preventing further movement. The water inside the tube seeks to maintain the same level as the water in the bucket, demonstrating the principles of hydrostatic pressure. Understanding these concepts clarifies why water flows and stops in this scenario.
sameeralord
Messages
659
Reaction score
3
I don't understand.

If there is a bucket of water and you put a tube inside the bucket and blow at one end and then release water flows out of the tube. Why does this happen. Also when you raise this tube water stops. Why? This is not homework or anything. :smile:
 
Physics news on Phys.org
sameeralord said:
I don't understand.

If there is a bucket of water and you put a tube inside the bucket and blow at one end and then release water flows out of the tube. Why does this happen. Also when you raise this tube water stops. Why? This is not homework or anything. :smile:

Because the water is acting like a spring. Push on one end of a spring , when you release it it springs back.

It's the water inside the tube tying to stay at the same level as that in the bucket - in the same way a spring will try to keep it's end at one position before you pushed on it.
 

Thread '1:1 versus 2:1 Mechanical Advantage debate'

The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
View full post »

Thread 'Newton's first law?'

Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
View full post »
Thread 'Beam on an inclined plane'

Thread 'Beam on an inclined plane'

Hello! I have a question regarding a beam on an inclined plane. I was considering a beam resting on two supports attached to an inclined plane. I was almost sure that the lower support must be more loaded. My imagination about this problem is shown in the picture below. Here is how I wrote the condition of equilibrium forces: $$ \begin{cases} F_{g\parallel}=F_{t1}+F_{t2}, \\ F_{g\perp}=F_{r1}+F_{r2} \end{cases}. $$ On the other hand...
View full post »

Similar threads

B Physically speaking, what happens in Torricelli’s experiment?
Replies
14
Views
3K
Does Fluid Dynamics Explain Pressure Gradients in a Frictionless Tube?
Replies
48
Views
5K
Why does external pressure on a liquid increase vapor pressure
Replies
31
Views
10K
Flow of air through an open tube with a balloon
Replies
9
Views
4K
Rocket propulsion explained only through pressure differential
Replies
46
Views
5K
I Find Best Water Nozzle Type & Pressure for Longest Distance
Replies
32
Views
9K
Floating, hydrostatic forces, average density
Replies
6
Views
2K
Air pressure holds coaster on glass: What if only half full?
Replies
9
Views
2K
Exactly how do pressure waves work at the molecular level?
Replies
49
Views
4K
Need help trying to mimic a phenomenon associated with air pressure
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top