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How much air pressure is required?

  1. Jan 16, 2016 #1
    Given the following situation:
    FjBwia.png
    Given that A is air tight how would one go about working out the air pressure required to achieve:
    lo3BNL.png
    Any assistance would be appreciated.
     
  2. jcsd
  3. Jan 16, 2016 #2
    Last edited: Jan 16, 2016
  4. Jan 16, 2016 #3

    russ_watters

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    Staff: Mentor

    Google "hydrostatic pressure".

    You don't need force for this, just pressure.
     
  5. Jan 17, 2016 #4
    Thanks Russ. I think this is the key. My gut says that if you increase air pressure to equal water pressure at a certain depth that this will displace water to that depth. Is that correct?
     
  6. Jan 17, 2016 #5

    russ_watters

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    Staff: Mentor

    Correct.
     
  7. Jan 17, 2016 #6
    Thanks, much appreciated.
     
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