Question

QUESTION 7 A spectator at a parade receives an 888 Hz tone from an oncoming trumpeter who is playing an 877 Hz note. At what speed is the musician approaching if the speed of sound is 340 m/s? Express the numeral of your answer in SI units with 2 or more significant figures.

Answer 1

. fo = vs) to fo= obsesred freen = 288H? v=speed of sound = 340 ml Vs=speed of source fs = freza of sourie = 877 H2 888 = ( 13 932 vs ) *877 - 340-VS = 340.4877 888 =) Vs = 4.212 mis speed of musician =Vs=4.212 m/s ny tt- period f wavelength=€ Are y period =F