1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Fluids velocity homework help

  1. Apr 3, 2007 #1
    1. A tube of radius 5 cm is connected to tube of radius 1 cm as shown above. Water is forced through the tube at a rate of 10 liters/min. The pressure in the 5 cm tube is 1×105 Pa. The density of water is 1000 kg/m3. Assume that the water is nonviscous and uncompressible.

    2. P=F/A, Q=v1A1 = v2A2

    3. no idea

    (a) What is the velocity of the water in the 5 cm radius tube in m/s?

    thanks for anyhelp
  2. jcsd
  3. Apr 3, 2007 #2
    Looks like you know the volume per time that pass through that tube. Volume can be thought of as area times length. The dimension of the tube is known.
  4. Apr 3, 2007 #3
    it doesnt tell us the length of the tube, its not a perfect cylinder. it starts off with a 5cm radius tube, and angles into a 1 cm radius tube, back out to a 5cm radius tube.
  5. Apr 3, 2007 #4
    It doesn't matter where you look in the tube, 10 L pass by each min.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook