A 520-Hz Whistle Is Moved Toward a Listener at a Speed

question 31

Multiple Choice

A 520-Hz whistle is moved toward a listener at a speed of 50 m/s.At the same time,the listener moves at a speed of 70 m/s in a direction away from the whistle.What is the apparent frequency heard by the listener? (The speed of sound is 340 m/s. )

• A) 444 Hz
• B) 484 Hz
• C) 735 Hz
• D) 360 Hz
• E) ​610 Hz

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Definitions:

Discriminating

Making a distinction in favor or against someone or something based on the group, class, or category rather than according to actual merit; often refers to unfair treatment based on prejudice.

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The legally recognized union between two individuals of the same sex, affording them the same rights and obligations as heterosexual marriage.

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Acknowledged or given formal acceptance as valid, legitimate, or worthy of attention.

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