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Speed of air after a nozzle

  1. Jan 28, 2014 #1
    If a circular pipe with diameter 4ft has an airspeed of 100mph which then funnels through an orface(sp?) with diameter 2ft, what is is the air speed after the air passes though the hole?
    Any help would be very much appreciated. I am completely lost...
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jan 29, 2014 #2
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