Problem C9: A car is traveling with a velocity of v/n2i, and the driver honks the horn. The frequency of the horn is 640 Hz. You are driving your car with a velocity v/n1i, where in both cases v is the speed of sound in air. The unit vector i points to the right. See the figure below. What is the frequency of the horn's sound that you hear? If you hear a frequency of n3 Hz, what is n3? Note that n1 and n2 are unitless, and n3 has units of Hz.

n1 = n2 = Input n3:

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