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Vacuum question

  1. Nov 26, 2009 #1
    If you were to destroy all the air around an object, would that give you a temporary vacuum or would the air be replaced so quickly that it wouldn't make a difference?
     
  2. jcsd
  3. Nov 26, 2009 #2

    mathman

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    Is the object inside an enclosure? If not, air would come in immediately.
     
  4. Nov 26, 2009 #3

    mgb_phys

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    Well it couldn't come in faster than the speed of sound.

    Something pretty similair happens to make thunder
     
  5. Nov 27, 2009 #4
    No, the object is not inside an enclosure. I was thinking of any type of sealed object traveling through the sky.
     
  6. Nov 27, 2009 #5
    Are you certain that this is true? Could you explain the logic please? So then a supercavitation type of phenomenon would be possible but with a vacuum.


    Would you mind elaborating please. Thanks
     
    Last edited: Nov 27, 2009
  7. Nov 27, 2009 #6
    Also, lets say that the object has acceleration. I know this would affect the airflow but how?
     
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