Tag: A friend of yours is loudly singing a single note at 400 Hz while racing toward you at 25.5 m/s on a day when the speed of sound is 340 m/s.

A friend of yours is loudly singing a single note at 400 Hz while racing toward you at 25.5 m/s on a day when the speed of sound is 340 m/s. What frequency do you hear? = (346/346-24.6) 380 = 346 x 380/ 321.4 = 409.085 = 409 hz