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As you are stopped for a traffic light an ambulance approaches you with a speed of 17 m/s. The ambulance's siren is emitting a sound wave with a frequency of 950 Hz. Consider the speed of sound to be 340 m/s and compute the frequency of the sound you hear.

A.950 Hz
B.1000 Hz
C.1050 Hz
D.1100 Hz
E.1150 Hz

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