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Homework Help: Problem of Waves

  1. Mar 8, 2010 #1
    1. The problem statement, all variables and given/known data
    A cord is anchored to a wall at one end. It passes over a pulley and is attached to a mass at the other end. When the cord is plucked, it vibrates in its fundamental mode. The sound waves that emerge from the cord have a wavelength of 78cm. The cord is 63cm long and has a mass of 5.4g

    What is the resonant frequency of the cord?

    What is the wavelength of the fundamental mode of vibration in the cord?

    What is the speed of a wave in the cord?

    What is the weight of the mass?/

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 9, 2010 #2


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    Science Advisor
    Homework Helper

    Hi TheNextOne21! :wink:

    Show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
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