- #1
brain2k
- 5
- 0
Hello dear sirs/madams,
I would ask you to answer the following question.
I have a flexible hose with a diameter of 5 cm, a length of 10 meters, it is in a vertical position and is filled to the top, with water.
The hose is sealed on the top and the bottom.
At the top of the hose, there is a pressure sensor.
Now the question :
Does, the pressure sensor, always shows the same value, if i press on the hose with a finger with a force of 10 Newtons (force is not important really):
1. ) on the bottom of a hose, for example 10 cm from the bottom
2. ) in the middle of the hose, for example at a height of 5 m
3. ) at the top of the hose, for example 10 cm from the top
So would the pressure sensors show the same value in all three experiments?
Personally, i am thinking like this: because in 10 m water columnt, the hydrostatic pressure is 1 bar. Our finger has first to overcome this force, then the pressure in the liquid began to increase. Am i thinking right
So I think, it can even happen that, this sensor will not detect any pressure change, if we press on the bottom of a hose.
And a sub-question:
What if pressure sensor is mounted on the bottom, does this change anything?
Please tell me what you think
I would ask you to answer the following question.
I have a flexible hose with a diameter of 5 cm, a length of 10 meters, it is in a vertical position and is filled to the top, with water.
The hose is sealed on the top and the bottom.
At the top of the hose, there is a pressure sensor.
Now the question :
Does, the pressure sensor, always shows the same value, if i press on the hose with a finger with a force of 10 Newtons (force is not important really):
1. ) on the bottom of a hose, for example 10 cm from the bottom
2. ) in the middle of the hose, for example at a height of 5 m
3. ) at the top of the hose, for example 10 cm from the top
So would the pressure sensors show the same value in all three experiments?
Personally, i am thinking like this: because in 10 m water columnt, the hydrostatic pressure is 1 bar. Our finger has first to overcome this force, then the pressure in the liquid began to increase. Am i thinking right
So I think, it can even happen that, this sensor will not detect any pressure change, if we press on the bottom of a hose.
And a sub-question:
What if pressure sensor is mounted on the bottom, does this change anything?
Please tell me what you think