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Home Q & A Board Science-Related Homework Help Physics
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Brelou Brelou
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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 approaches a stationary pedestrian. What frequency does the pedestrian hear? The speed of sound in air is 343 m/s.
A) 200 Hz
B) 375 Hz
C) 400 Hz
D) 425 Hz
E) 450 Hz
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Physics

Physics


Edition: 4th
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Quantum physics thus reveals a basic oneness of the universe.
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longhairlonghair
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Brelou Author
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7 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
patod1
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Yesterday
Thanks
jbag1237
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2 hours ago
this is exactly what I needed
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