Concept explainers
(a)
Speed of sound of hiker's voice in the air.
(a)
Answer to Problem 25PP
The answer is
Explanation of Solution
Given:
Distance,
Time,
Formula used:
Formula to calculate the distance travelled is
Where,
Calculation:
The given distance is
Substituting all the given values in above formula,
Conclusion:
Hence, the speed of sound of hiker’s voice in air is
(b)
The frequency of sound in air.
(b)
Answer to Problem 25PP
The frequency of sound in air is
Explanation of Solution
Given:
Speed,
Wavelength,
Formula used:
The frequency of is sound is calculated by using the following expression:
Where,
Calculation:
The frequency of is sound can be given by formula,
Substitute the given values of distance and time in above formula,
Conclusion:
Hence, the value of frequency of sound of the hiker’s voice in air is
(c)
Period of wave
(c)
Answer to Problem 25PP
Period of wave is
Explanation of Solution
Given:
Frequency,
Formula used:
The period of wave is calculated by using the following expression:
Where,
Calculation:
The period of wave can be calculated by formula,
Substitute the given values of wavelength and velocity in above formula,
Conclusion:
Hence, the frequency is
Chapter 14 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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