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Northa Northa
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Posts: 1284
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7 years ago
A car horn emits a frequency of 400 Hz. A car traveling at 20.0 m/s sounds the horn as it goes away from a stationary pedestrian. What frequency does the pedestrian hear? The speed of sound in air is 343 m/s.
A) 378 Hz
B) 389 Hz
C) 411 Hz
D) 422 Hz
E) 450 Hz
Textbook 
Physics

Physics


Edition: 4th
Author:
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longhairlonghair
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7 years ago
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Northa Author
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6 years ago
I know this probably seemed easy to you, but trust me I struggled
I am your master!
ped
wrote...
A year ago
Wait, I'm getting:

Why is yours different?
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