The 17500 Hz whine of the turbines in the jet engines of an aircraft moving with speed 280 m/s is heard at what frequency by the pilot of a second craft trying to overtake the first at a speed of 380 m/s?

1 answer

F = ((V+Vr)/(V+Vs))*Fs,

V = 343 m/s = Speed of sound in air.
Vr = 380 m/s = Speed of receiver.
Vs = 280 m/s = Speed of source.
Fs = 17,500 Hz. = Frequency of source.

F = 20,309 Hz.

Plug-in the given values to verify results.

f
Similar Questions
    1. answers icon 1 answer
  1. Mass 500,000 kgWing Area 845 m2 Wingspan 79.75 m Number of Engines 4 CLmax flaps retracted 1.9 CLmax flaps extended 2.6 Oswald
    1. answers icon 1 answer
  2. Mass 500,000 kgWing Area 845 m2 Wingspan 79.75 m Number of Engines 4 CLmax flaps retracted 1.9 CLmax flaps extended 2.6 Oswald
    1. answers icon 1 answer
    1. answers icon 2 answers
more similar questions