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Air pocket

  1. Nov 12, 2008 #1
    cavity on a water surface

    A vertical air jet from a straw produces a cavity on a water surface. What parameters determine the volume and depth of the cavity?
    Last edited: Nov 12, 2008
  2. jcsd
  3. Nov 12, 2008 #2


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    Staff: Mentor

    Velocity pressure = depth * weight density
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