Choose the one alternative that best completes the statement or answers the question. -A car approaches you at a constant speed, sounding its horn, and you hear a frequency of 76

Choose the one alternative that best completes the statement or answers the question.
-A car approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 Hz. After the car goes by, you hear a frequency of 65 Hz. What is the frequency of the sound emitted
By the horn? The speed of sound in the air is 343 m/s.
A) 70 Hz
B) 68 Hz
C) 72 Hz
D) 69 Hz
E) 71 Hz

Leave a Reply

Your email address will not be published.