Doppler Effect and Shock Wave Physics Sound Doppler Effect and Shock Wave Questions Why does the doppler effect occur in all waves? How was the doppler effect discovered? How can I use the doppler effect equation? How the doppler effect is used in medicine? What is the frequency heard by a person driving at 15 m/s toward a blowing factory whistle (800. Hz) if the speed of sound is 340.6 m/s? When an automobile moves towards a listener, does the sound of its horn seem relatively low pitched, high pitched or normal? How does the doppler effect change the appearance of emitted light? How is the doppler effect used in an ultrasonography diagnostic? A sparrow chases a crow with a speed of 4.0 m/s, while chirping at a frequency of 850.0 Hz. What frequency of sound does the crow hear as he flies away from the sparrow with a speed of 3.0 m/s? What is meant by the terms red-shift and blue-shift? Horseshoe bats use the Doppler effect to determine their location. A horseshoe bat flies toward a wall at a speed of 19 m/s while emitting a sound of frequency 37 kHz. What is the beat frequency between the emission frequency and the echo? How do astronomers use the Doppler effect to determine the velocities of astronomical objects? Suppose that a public address system emits sound uniformly in all directions and that there are no reflections. The intensity at a location 27 m away from the sound source is 3.0 × 10-4 #W/m^2#. What is the intensity at a spot that is 87 m away? What is the Doppler shift, and why is it important to astronomers? A car sounds its horn (502 MHz) as it nears a pedestrian. The pedestrian has a perfect pitch and determines that the sound from the horn has a frequency of 520 Hz. If the speed of the sound that day was 340 m/s, how fast was the car travelling? A commuter train passes a passenger platform at a constant speed of 40.0 m/s. The train horn is sounded at its frequency of 320 Hz. What wavelength is detected by a person on the platform as the train approaches? Question #7f704 Question #5de75 Word Problem regarding The Doppler Effect? Mike is playing his speaker at an unknown frequency. His friend, Emma, gets on her bike and rides away from Mike at a uniform speed, holding an open-air column horizontally over her head. What was the frequency of the sound coming from Mike's speaker? Question #339ae Question #f4962 Question #5ca90 Question #a6987 Doppler Effect? Sound View all chapters Sound waves Sound Intensity Harmonics Physics of Music Doppler Effect and Shock Wave Prev