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An Airplane Traveling at Half the Speed of Sound Emits

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Short Answer

An airplane traveling at half the speed of sound emits sound at a frequency of 5 000 Hz. At what frequency does a stationary listener hear the sound as the plane approaches, and after it passes by? Assume the airplane is not flying very high.


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A federally owned corporation in the United States created in 1933 to provide navigation, flood control, electricity generation, and economic development in the Tennessee Valley.

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A series of programs, public work projects, financial reforms, and regulations enacted by President Franklin D. Roosevelt in the 1930s to counter the Great Depression.

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The highest judicial court in the United States, with ultimate appellate jurisdiction over all federal and state court cases that involve a point of federal law.

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