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Physics / University Physics 13 / Chapter 16 / Problem 75P

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

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The sound source of a ship’s sonar system operates at a

Chapter 16, Problem 75P

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QUESTION:

The sound source of a ship’s sonar system operates at a frequency of 18.0 kHz. The speed of sound in water (assumed to be at a uniform 20o C) is 1482 m/s. (a) What is the wavelength of the waves emitted by the source? (b) What is the difference in frequency between the directly radiated waves and the waves reflected from a whale traveling directly toward the ship at 4.95 m/s? The ship is at rest in the water.

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QUESTION:

The sound source of a ship’s sonar system operates at a frequency of 18.0 kHz. The speed of sound in water (assumed to be at a uniform 20o C) is 1482 m/s. (a) What is the wavelength of the waves emitted by the source? (b) What is the difference in frequency between the directly radiated waves and the waves reflected from a whale traveling directly toward the ship at 4.95 m/s? The ship is at rest in the water.

ANSWER:

Solution 75P (a).In problem first we have to calculate the frequency of wavelength,generally the wavelength can be calculated by velocity of source's sound divided by source's frequency. = v sfs. First we have to note down given that gives an idea how to solve and which formula we have to use Given data: The sound source of a ship’s sonar system operates at

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