A baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of 1210 Hz. What frequency (in H

Question

Sphinxa

1 month ago

5

A baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of 1210 Hz. What frequency (in H

z) is heard by a boy on a bicycle riding away from the car at 8.25 m/s? Take the speed of sound to be 343 m/s.

Physics

1 answer:

serg [3.5K] · Answer 1 · 2026-03-15T20:13:51+03:00

serg [3.5K]1 month ago

8 0

The frequency perceived by the boy is 1181 Hz. The speed from the alarm is -8.25 m/s, indicating the boy is moving away from it. The sound speed is 343 m/s. We must calculate the frequency that the boy hears using the appropriate formula.