What frequency does your friend hear if you suddenly start

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Reference no: EM13636477

A friend of yours is loudly singing a single note at 400 Hz while driving towards you at 25m/s on a day when the speed of sound is 340m/s.

a. What frequency do you hear?

b. What frequency does your friend hear if you suddenly start singing at 400Hz?

Reference no: EM13636477

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