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Finding a temperature

  1. Dec 12, 2016 #1
    Hi,
    I am doing a problem and I need to find the reynolds number for a pipe which only contains water going from a river to cool water basin. I know the initial temperature is 10 degrees C and the final is 15 degrees C, so can I just take an average temperature and use that to find the viscosity and density or is it more complicated than that?

    Thanks!
     
  2. jcsd
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