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: Fluid Flow help

  1. Feb 18, 2016 #1
    1. The problem statement, all variables and given/known data
    A 15 cm. radius cylindrical air duct is used to replenish the air of a room 10 m.*6 m.* 3m. Every 10 minutes. Determine the speed of the air through the duct in m/s. A1=15 V1=? A2=19 V2=0

    2. Relevant equations

    3. The attempt at a solution
    3.14*15^2 * ?= 19*0=. 3.14*15^2=706.5
  2. jcsd
  3. Feb 19, 2016 #2


    User Avatar
    Science Advisor

    Your attempt makes no sense. show units and explain your reasoning.

    What is the volume of the room?
    What volume per second must flow through the room to replace that volume every ten minutes?
    To achieve that volumetric flow rate how fast must that air flow through the duct?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted