The standard frequency of the musical pitch called “middle C” is
261.6 Hz.
A) How fast, in meters per second, would a source emitting a
tone of middle C have to move toward you so that you would hear the
pitch C# (C sharp) above middle C, with a frequency of 277.2 Hz?
Assume that takes place in air at a high altitude, where the speed
of sound is 296 m/s.
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