Question

What frequency is received by a mouse just before being dispatched by a hawk flying at it at 25.0 m/s and emitting a screech of frequency 3500 Hz? Take the speed of sound to be 331 m/s.

a) (4300 Hz)
b) (4500 Hz)
c) (4700 Hz)
d) (4900 Hz)

Answer 1

The frequency received by the mouse just before being dispatched by the hawk is 3382 Hz.Hence, the answer is not provided among options.

Step-by-step explanation:

The frequency received by a mouse just before being dispatched by a hawk can be calculated using the Doppler effect formula:

f' = f * (v + v_observer) / (v + v_source),

where f' is the received frequency, f is the emitted frequency, v is the speed of sound, v_observer is the velocity of the observer (which is zero in this case), and v_source is the velocity of the source (the hawk's velocity).

Plugging in the values:

f' = 3500 * (331) / (331 + 25) = 3382 Hz.

Therefore, the frequency received by the mouse just before being dispatched by the hawk is 3382 Hz. THe answer is not provided among options.