A tuning fork producing 512 Hz is sounded next to a car horn whose rest frequency is…
PHYSICS · Subjective · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics
Problem
A tuning fork producing 512 Hz is sounded next to a car horn whose rest frequency is also 512 Hz. The car moves at 15 m/s toward a stationary observer, passes, and then moves away at the same speed. The speed of sound is 340 m/s. Calculate the beat frequency the observer hears (i) while the car approaches and (ii) while it recedes.