#44 Problema de aplicación 13, 14 y 15 Taller práctico Efecto Doppler

#44 Application Problems 13, 14, and 15: Doppler Effect Practical Workshop At what speed must an observer move toward a stationary source to perceive a frequency three times that emitted by the source? A sound source emitting a sound frequency of 380 s⁻¹ approaches a stationary observer at a speed of 25 m/s. What frequency is detected by the observer? An ambulance traveling at 16.6 m/s emits a sound with a frequency of 270 s⁻¹. If a mail carrier pedals their bicycle in the same direction at a speed of 3 m/s (see figure), what frequency does the mail carrier perceive? I'm sharing a new video about the Doppler Effect. I hope it's very useful for you, your children, a family member, or a friend. Please subscribe to my channel "PHYSICS WITH JIMMY SALCEDO"    / jorsame219   and share.