S Srednas New member Dec 11, 2011 #1 An engine driver sounds his whistle when his train is approaching a station at 20 m/s. A waiting passenger hears a note of 240 Hz. What note did the engineer hear? The answer is apparently 225.8, but how?
An engine driver sounds his whistle when his train is approaching a station at 20 m/s. A waiting passenger hears a note of 240 Hz. What note did the engineer hear? The answer is apparently 225.8, but how?
