Physics Web Assign Ch 14 #6

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Two trains on separate tracks move toward each other. Train 1 has a speed of 137 km/h; train 2 a speed of 77.0 km/h. Train 2 blows its horn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1?
_____ Hz
  1. Mike Birkhead
  2. Physics
  3. Webassign
  4. Web Assign
  5. College Physics
  6. MOB University
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