Will siphoning continue during free fall in an elevator?

  • Thread starter Thread starter cragar
  • Start date Start date
AI Thread Summary
Siphoning in a free-falling elevator will not continue effectively due to the lack of gravitational force. Initially, siphoning relies on gravity to create a pressure differential, which is disrupted during free fall. Although the water may have momentum, it will eventually stop flowing as frictional losses consume its kinetic energy. In free fall, objects experience apparent weightlessness, preventing the water from exiting the container. Therefore, siphoning will cease in this scenario.
cragar
Messages
2,546
Reaction score
3
Lets say I am in an elevator and I start siphoning from 2 containers. And then the elevator goes into free fall after it was already siphoning. I originally thought that it would stop siphoning instantly as it went into free fall. Now I think it will stop a little later. As the siphon is running gravity is doing the work, when it goes into free fall it is like gravity is turned off. So the force is cut but the water has momentum, so will the water flow until the friction causes the water to stop. I am thinking about this correctly?
 
Physics news on Phys.org
someone has to have something on this.
 
The siphon will not work in such a scenario. There has to be a pressure differential at the top of the inverted U for it to function. So yes, it will only work until frictional losses consume all the (kinetic)energy.
 
I agree. In free fall objects experience apparent weightlessness. The water would not run out of the hole in the bottom of the container.
I have seen film taken on the ISS and water is seen to 'float around' in the cabin
 
Thread 'Is there a white hole inside every black hole?'
This is what I am thinking. How much feasible is it? There is a white hole inside every black hole The white hole spits mass/energy out continuously The mass/energy that is spit out of a white hole drops back into it eventually. This is because of extreme space time curvature around the white hole Ironically this extreme space time curvature of the space around a white hole is caused by the huge mass/energy packed in the white hole Because of continuously spitting mass/energy which keeps...
Why do two separately floating objects in a liquid "attract" each other ?? What if gravity is an emergent property like surface tension ? What if they both are essentially trying to *minimize disorder at the interfaces — where non-aligned polarized particles are forced to mix with each other* What if gravity is an emergent property that is trying to optimize the entropy emerging out of spin aligned quantum bits
Back
Top