An aircraft travelling at half the speed of sound emits sound at a frequency of 5000 Hz. At what frequency does a stationary listener hear the sound as the plane approaches, and after it passes by? Assume the aircraft is not flying very high.

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The Answer of An aircraft travelling at half the speed of sound emits sound at a frequency of 5000 Hz. At what frequency does a stationary listener hear the sound as the plane approaches, and after it passes by? Assume the aircraft is not flying very high.

An Aircraft Travelling at Half the Speed of Sound Emits