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Vacum speed

  1. Jan 27, 2007 #1


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    This might sound silly , but can a vacum have a speed ?
  2. jcsd
  3. Jan 27, 2007 #2


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    A vacuum isn't a thing; it's a lack of anything. The material that is displaced in order to create a vacuum will have a speed.
  4. Jan 27, 2007 #3


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    How fast can vacuum fill a container? The question is more correctly 'how fast can air leave the container?'
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