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Does anyone know equations that can be used to equate fluid viscosity

  1. Feb 20, 2005 #1
    Does anyone know equations that can be used to equate fluid viscosity using the terminal velocity of a mass falling down a tube of that liquid?

    Thanks
     
  2. jcsd
  3. Feb 20, 2005 #2

    Andrew Mason

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    Try this equation for terminal velocity of a falling sphere of radius R:

    [tex]v_{t} = \frac{mg}{6\pi R\eta}[/tex]

    where [itex]\eta[/itex] is the viscosity of the fluid. This is derived from Stokes' Law.

    AM
     
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