Ocean waves of wavelength 22 m are moving directly toward a concrete barrier wall at 4.6 m/s . The waves reflect from the wall, and the inco

Question

Ocean waves of wavelength 22 m are moving directly toward a concrete barrier wall at 4.6 m/s . The waves reflect from the wall, and the incoming and reflected waves overlap to make a lovely standing wave with an antinode at the wall. (Such waves are a common occurrence in certain places.) A kayaker is bobbing up and down with the water at the first antinode out from the wall.

Required:
a. How far from the wall is she?
b. What is the period of her up-and-down motion?

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RuslanHeatt 7 months 2021-07-19T05:07:59+00:00 1 Answers 5 views 0

Answers ( )

    0
    2021-07-19T05:09:52+00:00

    Answer:

    a)  d=11m

    b)  T=4.68s

    Explanation:

    From the question we are told that:

    Wavelength \lambda=22m

    Velocity v=4.6m/s

    a)

    Generally the equation for distance between her and the wall d is mathematically given by

    Since

    The First Anti node distance is \frac{\lambda}{2}

    Therefore

     d= \frac{\22}{2}

     d=11m

    b)

    Generally the equation for her up-and-down motion is mathematically given by

     T=\frac{22}{4.7}

     T=4.68s

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