Q2: A bird is flying directly toward a stationary watcher and emits a frequency of 1800 Hz. The watcher, however, hears a frequency of 1845 Hz. What is the speed of the bird? (hint the speed of the sound is 343 m/s)
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Q: sound waves in air ( v = 343 m/s ) has a frequency of 320 Hz. In ocean water, its wavelength is…
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- 3. A bystander hears a siren vary in frequency from 598 Hz to 364 Hz as a fire truck approaches, passes by, and moves away on a straight street. What is the speed of the truck? (Take the speed of sound in air to be 343 m/s.) m/s f60 ss f60 s ssfo ssf60 sA truck travelling west at 60 m/s sounds it's 440 hz horn as it passes an observer riding a bike traveling east at 20 m/s. What frequency does the observer hear as the car approaches?Jane is traveling west at a speed of 25 m/s. A train is traveling directly towards her with a speed of 100 m/s. The train is making a sound wave with frequency of 600 Hz. Assuming that the speed of the sound in air is 340 m/s, What frequency does Jane hear?
- The range of frequencies used for medical applications includes 1,646,125 Hz. What is the wavelength of this frequency in air at a temperature of 20.0°? 2. 入= x 10 mA string on a musical instrument vibrates with a frequency of 210. Hz. If the wave in the string has a wavelength of 2.07 m, what is the velocity of the wave? 377 m/s 435 m/s 101 m/s 338 m/sAn ambulance with a siren emitting a whine at 1730 Hz overtakes and passes a cyclist pedaling a bike at 2.60 m/s. After being passed, the cyclist hears a frequency of 1722 Hz. How fast is the ambulance moving? (Take the speed of sound in air to be 343 m/s.) Number i Units
- A train is leaving the platform at the speed of 33 m/s.A person standing on the platform waiting for his train observes frequency of 0.400 kHz.from the train's whistle that was pulling off the station.What is the actual frequency of the train whistle? (Take the speed of sound to be 340 m/s.) 364 Hz O 439 Hz 361 Hz O 444 HzTornado Siren. The frequency of a tornado siren is 920 Hz. If a cyclist is moving toward the siren at 10 m/s in 15 °C air, which has a speed of sound of 340 m/s, what is the frequency that the cyclist observes?A state trooper chases a speeder along a straight stretch of road; both vehicles move at 137 km/h. The siren on the tropper's vehicle produces a sound of 564 Hz. What frequency is heard by speeder? (Take the speed of sound in air to be 343 m/s.) Number Units