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Homework Help: Differential equation

  1. May 3, 2009 #1
    [tex]
    \frac{dN}{dt}=-k_sN^2
    [/tex]

    Attempt:

    [tex]
    \frac{1}{N^2}dN = -k_s dt
    [/tex]

    Integrate:

    [tex]
    -\frac{1}{N} + C = -k_s t
    [/tex]

    In the solution manual, C is written [/tex]\frac{1}{N_0}[/tex]

    Why?
     
  2. jcsd
  3. May 3, 2009 #2

    dx

    User Avatar
    Homework Helper
    Gold Member

    You posted this already and I replied to it in the other thread.
     
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