12. Two trains on separate tracks moves toward each other. Train 1 has moved with a speed of 118 km/h and train 2 moved with a speed of 81.0 km/h. When train 1 blows its horn, it emits a frequency of 475 Hz. If Train 2 heard the sound with a 533 Hz, what is the speed of the sound in the air?

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Chapter1: Units, Trigonometry. And Vectors
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12. Two trains on separate tracks moves toward each other. Train 1 has moved with a speed of 118 km/h
and train 2 moved with a speed of 81.0 km/h. When train 1 blows its horn, it emits a frequency of
475 Hz. If Train 2 heard the sound with a 533 Hz, what is the speed of the sound in the air?
Transcribed Image Text:12. Two trains on separate tracks moves toward each other. Train 1 has moved with a speed of 118 km/h and train 2 moved with a speed of 81.0 km/h. When train 1 blows its horn, it emits a frequency of 475 Hz. If Train 2 heard the sound with a 533 Hz, what is the speed of the sound in the air?
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