An engine blowing a whistle of frequency 133 Hz moves with a velocity of 60 m/s towards a hill from which an echo is heard. Calculate the frequency of the echo heard by the driver.

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An engine blowing a whistle of frequency 133 Hz moves with a velocity of 60 m/s towards a hill from which an echo is heard. Calculate the frequency of the echo heard by the driver.
07
Nov
An engine blowing a whistle of frequency 133 Hz moves with a velocity of 60 m/s towards a hill from which an echo is heard. Calculate the frequency of the echo heard by the driver. An engine blowing a whistle of frequency 133 Hz moves with a velocity of 60 m/s towards a hill from [...]
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