A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1.09 × 10³ Hz. The bird-watcher, however, hears afrequency of 1.17 × 103 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?Number ieTextbook and MediaSave for Later7#C$UnitsווםAttempts: 0 of 3 usedSubmit Answer8EApr 305

The person who hears the noise (the bird watcher) is stationary while the source (the bird) is…

Answered: A bird is flying directly toward a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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4. An observer is standing on the platform of a railway station. A train goes through the station without stopping. If the frequency of the train whistle decreases by a factor of 1/4 as it approaches and then passes him, calculate the speed of the train (assume the speed of sound in air = 343 m/s).
On the planet Arrakis, a male ornithoid flies toward his female companion at 25.0 m/s while singing at a frequency of 1200 Hz. The stationary female hears a pitch of 1240 Hz. Calculate the speed of sound in the atmosphere of Arrakis.
A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat makes. If bats emit a chirp at a frequency of 51.0 kHz, and if the speed of sound in air is 340 m/s, what is the smallest insect a bat can detect?mm
Ocean waves with a wavelength of 40.0 m travel at 5.00 m/s towards a boat at sea. Determine the number of times the boat bobs up and down per minute as a result of encountering the waves.
A convertible moves toward you and then passes you; all the while, its loudspeakers are producing a sound. The speed of the car is a constant 8.93 m/s, and the speed of sound is 342 m/s. What is the ratio of the frequency you hear while the car is approaching to the frequency you hear while the car is moving away? Number Units > #3 C E m/s 7 8 5 % JU 6 וום & e t y u Apr 30 5 6 0
A source emits sound waves isotropically. The intensity of the waves 3.13 m from the source is 1.99 x 104 W/m². Assuming that the energy of the waves is conserved, find the power of the source. Number i Units
A source emits sound waves isotropically. The intensity of the waves 2.95 m from the source is 1.58 x 10-4 W/m2. Assuming that the energy of the waves is conserved, find the power of the source. Number i ! Units W
Problem #5. Engr. Pagsanjan, a physicist, wants to study the frequency to be observed in a bat cave (the temperature inside the cave is 14°C). If a bat emits 29,614 Hz flying at the rate of 3.69 m/s, solve the frequency detected by the sonic speaker if : E. the bat clings along a branch and the sonic speaker approach at 9.247 km/hr F. the bat clings along a branch and the sonic speaker recedes at 9.247 km/hr
A pin with a mass of 0.15 g falls from rest on a table 1.0 m high. Upon reaching the floor, 0.02% of the kinetic energy of the pin is converted into a sound pulse lasting 0.10 s which is emitted in all directions. If the background noise intensity is 1.0x10-8W/m2 , how far can a person be to hear the noise of a pin drop?a)7.5mb)5.3mc)6.2md)1.4me)4.8mf)3.1mg)4.0mh)2.5m
The following waveform has been measured at a sweep time of t = 50 + 2%. us ст (7.4 ±0.1) cm The frequency is (2703 + 65) Hz (2.70 ± 51) kHz (300 ± 5) Hz O (270 ± 9) Hz
A source of sound frequency 600Hz is placed inside water. The speed of sound in water is 1500 m/s and in air it is 300 m/s. The frequency of sound is recorded by an observer, who is standing in the air is? a) 200 Hz b) 3000 Hz c) 120 Hz d) 600 Hz
Express the following in W/m² : 80 dB

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