Question

9.
An ambulance travels down a highway at a speed of 75 min.
Its siren emits sound at a frequency of 400Hz. What is the
frequency heard by a person in a car travelling at 55 mija in
the opposite direction as the car approaches the ambulance
and as the car moves away from the ambulance.
Ans. 477Hz, 337Hz.​

Answer 1

Answer:

Explanation:

proper