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A train approaching a railway crossing at a speed of 120 km h sounds a short whistle at frequency 640 Hz when it is
A train approaching a railway crossing at a speed of 120 km h sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of sound in air is 340 ms. What will be the frequency heard by a person standing on a road perpendicular to the track through the crossing at a distance of 400 m from the crossing?
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College Physics
Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
7th edition
9780321571113, 321601831, 978-0321601834
