A 500-Hz Whistle Is Moved Toward a Listener at a Speed

question 47

Multiple Choice

A 500-Hz whistle is moved toward a listener at a speed of 10.0 m/s.At the same time,the listener moves at a speed of 20.0 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)473 Hz
• B)485 Hz
• C)533 Hz
• D)547 Hz

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Definitions:

Angina Pectoris

Chest pain or discomfort caused by reduced blood flow to the heart muscle, often a symptom of coronary artery disease.

Cardiac Arrest

A sudden loss of heart function, leading to a stop in effective blood flow and necessitating immediate medical attention.

Cardiovascular Disease

A general term for conditions affecting the heart and blood vessels, often related to atherosclerosis or plaque build-up within arteries.

Low-Density Lipoprotein

A type of cholesterol often referred to as "bad" cholesterol because high levels can lead to plaque buildup in arteries and heart disease.