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Homework Help: PLEASE HELP! Speed ad pressure in a nozzle.

  1. Apr 14, 2010 #1
    1. The problem statement, all variables and given/known data
    A garden hose with a diameter of 0.62in has water flowing in it with a speed of 0.52m/s and a pressure of 1.3 atmospheres. At the end of the hose is a nozzle with a diameter of 0.21 in.
    a.)Find the speed of the water in the nozzle.
    b.)Find the pressure in the nozzle.


    2. Relevant equations
    v2=v1(A1/A2)


    3. The attempt at a solution
    100+1/2(?)1.22=50+1/2(?)v2
     
  2. jcsd
  3. Apr 14, 2010 #2

    rock.freak667

    User Avatar
    Homework Helper

    Use this for the first part.

    I also don't know what you did in your attempt.
     
  4. Apr 14, 2010 #3

    Mark44

    Staff: Mentor

    There should not be any addition in your equation. As rock.freak667 suggests, use your relevant equation.
     
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