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Two trains move towards each other with the same speed. The speed of sound is 340 m/s. If the height of the tone of
Two trains move towards each other with the same speed. The speed of sound is 340 m/s. If the height of the tone of the whistle of one of them heard on the other changes 9/8 times, then the speed of each train should be (a) 20 m/s (b) 2 m/s (c) 200 m/s (d) 2000 m/s
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Physics
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
2nd edition
77339681, 978-0077339685
