What does it mean for there to be uniform pressure?

  • #1
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Homework Statement



A closed hemispherical shell of radius R is filled with fluid at uniform pressure p. The net force of the fluid on the curved portion of the shell is given by:


Homework Equations





The Attempt at a Solution


[/B]
I'm not even posting the answers because i'm not looking to get an answer.

I don't understand what it means for the fluid to be "at uniform pressure p".

At any height beneath the surface of this hemispherical shell, shouldn't the pressure be the sum of the weight of the water above it plus atmospheric pressure?

What does the uniform pressure, ## p ## mean?
 

Answers and Replies

  • #2
Merlin3189
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I would guess that the object is in space with no significant gravity and the fluid is stationary so there are no dynamic fluid forces.
Just assume the pressure is the same at all points in the fluid.
 
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  • #3
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I would assume the same
 
  • #4
haruspex
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weight of the water
It does not specify water. A fluid can be a gas, so the variation in pressure may be negligible.
 
  • #5
CWatters
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It is likely to make the problem a lot easier :-)
 
  • #6
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It most likely means that fluid pressure is not variable across the shell, at all points of the shells surface the pressure is not polarized to any one particular sector of it .

It is probably to make the question easier
 

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