Concept explainers
(a)
To Describe: The type of wave experienced in floating water.
(a)
Explanation of Solution
Introduction:
While floating offshore in a beach, even though the wave pulses travel towards the beach, a person does not move much closer to the beach. The person is floating on a boat.
The type of wave experienced by the person while floating on water is transverse wave. In this case, the displacement of water by the boat is perpendicular to direction of waves.
(b)
To Explain: The reason of the wave not moving closer to the shore.
(b)
Explanation of Solution
Introduction:
While floating offshore in a beach, a person does not move much closer to the beach although the wave pulses travel towards the beach. The person floats on a boat.
As the wave is a transverse wave, the energy of the wave does not move the person closer to the shore.
(c)
To Evaluate: The period of the waves in
(c)
Answer to Problem 91A
The time period is
Explanation of Solution
Given:
The period of waves is
Number of waves is
Formula used:
Time period can be expressed as,
Calculation:
Substitute
Conclusion:
Hence, the required time period is
(d)
To Find: The frequency of the waves.
(d)
Answer to Problem 91A
The frequency is
Explanation of Solution
Given:
The time period is
Formula used:
The frequency is given by
Here,
Calculation:
Substitute
Conclusion:
Hence, the required frequency is
(e)
To Find: The velocity of the waves
(e)
Answer to Problem 91A
The velocity is
Explanation of Solution
Formula used:
The relation between the velocity and wavelength is given by,
Here,
Calculation:
Substituting
Conclusion:
Hence, the required velocity is
(f)
To Describe: The actual wavelength of the waves if the waves are moving at
(f)
Explanation of Solution
Given:
Speed of waves,
Frequency of waves,
Formula Used:
The relation between the velocity and wavelength is given by,
Here,
Calculation:
Substituting
Conclusion:
Hence, the actual wavelength of the waves is
Chapter 14 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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