Question

A boy sees an airplane in the sky but hears the sound of the plane after 2.5 seconds. If
the speed of sound in air is 330 m/s, find the height of the airplane.​

Answer 1

Answer:

The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves:

{v}_{\text{w}}=\mathrm{f\lambda ,}