Consider what happens if I drive toward the clock tower on a day when the speed of sound is 345 m/s . Assume I approach the stationary clock tower at a speed of 15.0 m/s when it rings the 7.50 × 10^2 Hz bell. Calculate what frequency I will hear.
5) Now consider what happens if I drive away from the clock tower on a day when the speed of sound is 345 m/s . Assume I drive away from the stationary clock tower at a speed of 15.0 m/s when it rings the 7.50 × 10^2 Hz bell. Calculate what frequency I will hear
Fo = (Vs+Vo)/(Vs+Vc) * Fc = (345+15)/(345+0) * 750,
Fo = 360/345 * 750 = 782.6 Hz = Freq. heard by observer.
5. Fo = (345-15)/(345+0) * 750 =