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23 Nov 2021
Given information
Given values:
The industrial whistle emits a sound with a frequency of Hz.
The wind is the velocity at m/s.
Step-by-step explanation
Step 1.
The Doppler effect can only occur when the source and observer are moving relative to each other along the line that connects them. Because the whistle and the observer are not moving relative to each other, there is no Doppler shift in the first four components of this problem. The velocity of the waves in the wind direction rises (or falls), as though the speed of sound varies, while the frequency of the waves remains constant.
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