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March 25, 2017

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the tension in the wire is decreased by 19%. The percentage decrease in the frequency will be?

  • physics - ,

    A vibrating wire can have many different modes. I assume you are talking about the fundamental vibration frequency.

    The frequency of any mode is proportional to the square root of tension.
    sqrt(0.81) = 0.90
    The decrease is therefore exactly 10%

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