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Homework Help: Why is this wrong? Wave frequencies

  1. Nov 7, 2011 #1
    1. The problem statement, all variables and given/known data

    Δp = (1.3 Pa) sin π[(3.00 m^-1)x - (300 s^-1)t].

    Is the pressure of a wave.

    Find frequency

    2. Relevant equations

    3. The attempt at a solution

    Angular frequency = 300s^-1 = 300 hertz.

    Frequency = angular frequency / 2pi = 47.746

    Someone, please explain how I managed to screw up that very simple equation.
  2. jcsd
  3. Nov 7, 2011 #2


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    Homework Helper

    Can you explain what the red bit is all about.

    [Note: it may be some modern technique, but I hate it when a formula substitution is full of individual units. Makes trying to read it next to impossible. Even if the formula you were about to substitute into was written first would be a help]
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