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sladkih [1.3K]
4 years ago
10

A loudspeaker in a parked car is producing sound whose frequency is 20,563 Hz. A healthy young person with normal hearing is sta

nding nearby on the sidewalk but cannot hear the sound because the frequency is too high. When the car is moving, however, this person can hear the sound. (Normal hearing means a person will hear sounds from 20 Hz to 20 kHz.)
(a) ls the car moving toward or away from the person? Why?
(b) If the speed of sound is 343 m/s, what is the minimum speed of the moving car?

Physics
1 answer:
Katarina [22]4 years ago
6 0

Answer:

Explanation:

A.

Standing near the loudspeaker you cannot hear its frequency buy as the car moves away from it the frequency reduces.

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