A trumpet player is holding a tone with a 440 Hz fundamental frequency while seated on a porch which faces a road that dead ends in the street in front of her house. What fundamental frequency in Hz is heard by a passenger in a car that approaches the trumpet at 30 m/s? The speed of sound is 340 m/s on that day. a. 404 b. 440 c. 479 d. 518 e. 525

A trumpet player is holding a tone with a 440 Hz fundamental frequency while seated on a porch which faces a road that dead ends in the street in front of her house. What fundamental frequency in Hz is heard by a passenger in a car that approaches the trumpet at 30 m/s? The speed of sound is 340 m/s on that day. a. 404 b. 440 c. 479 d. 518 e. 525

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)...

See similar textbooks

Similar questions

A 300-Hz periodic wave travels 10 m in 5 s. Determine the wave number of the wave. O a. 190.400 rad/m O b. 3.141 rad/m c. 897.598 rad/m O d. 0.042 rad/m
The speed of sound in air is 330 m s-¹ 1. A motorcyclist travelling at a speed of 29 m s-¹ sounds the horn on their motorbike while passing a pedestrian beside the road. The rider hears the horn as a sound of frequency 250 Hz. a. What frequency does the pedestrian hear: i. when the motorcycle approaches? ii. when the motorcycle moves away? b. Explain why, when the motorcycle is right in front, the pedestrian hears the same frequency as the rider. D
A tranverse wave in a medium wave is described by the following equation: y(x,t) = (12 m)cos(3.0x - 120t). What is the speed of this wave? (x and y describe real space with units of meters, and t is time in seconds.) a. 30 m/s b. 50 m/s c. 60 m/s d. 70 m/s e. 40 m/s
The sound level at a distance d=34 m from a loudspeaker is 70 dB. What is the power (in Watt) at which sound energy is being produced by the loudspeaker?. The threshold of hearing, lo = 1*10-12 W/m2, A. 0.5265 B. 0.3812 C. 0.1453 D. None E. 0.5812
4. A bystander hears a siren vary in frequency from 592 Hz to 380 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 @ 2 W S X command # 3 E D C $ 4 R F G Search or type URL % 5 V.. T G MacBook Pro 6 B Y H & 7 N U 00+ J 8 - M 1332 j ( 9 0 K .C O L command P V - *** : 2 t { option [ ? 12
The Wanamaker Pipe Organ in Macy's Center City department store in Philadelphia is the largest working pipe organ in the world. The organ occupies a seven- story hall, and has the longest pipe length of 9.75 m that occupies four floors and can be used as either an open or a closed pipe. Assume that the speed of sound is 345 m/s. a. Calculate the lowest fundamental frequency for the Wanamaker Pipe Organ. b. The highest note on an 88-key piano is 4186 Hz. What would be the length of a pipe open on one end that produced this as a fundamental frequency?
A car approaches a reflective wall. An observer at rest behind the car hears a sound of frequency f1 from the car's horn and a sound of frequency f2 coming from the wall.a)What is the ratio of the car's speed to the speed of sound in air in terms of f1 and f2?b)What is the frequency of the car's horn in terms of f1 and f2?c)
As you are stopped for a traffic light an ambulance approaches you with a speed of 17 m/s. The ambulance's siren is emitting a sound wave with a frequency of 950 Hz. Consider the speed of sound to be 340 m/s and compute the frequency of the sound you hear. A.950 Hz B.1000 Hz C.1050 Hz D.1100 Hz E.1150 Hz
A train approaches a station and sounds it’s horn which has a natural frequency of 155 Hz. The train is traveling at 39 m/s and the speed of sound in air is 340 m/s. A. What frequency does a person standing at the station hear? B. What frequency does a person sitting on a train hear?
4. A car, sounding its horn, is moving at v. =158.4km / h directly toward a stationary wall in still air. The speed of sound, in the air, is v=330.0 m/s. The horn produces sound at a frequency of f. =1000.Hz (ie. if the car were stationary, that is the frequency you would hear). a) What frequency is heard by an observer at rest at the wall (assume the car is moving straight toward the observer)? b.) What is the wavelength, in the still air, of the sound wave approaching the wall? c) What is the frequency of the reflected sound heard by an occupant of the car?
A guitar string produces a musical note with a wavelength of 78.0 cm. If the sound's speed in air is 347 m/s, what is the frequency of the note? a. 445 Hz b. 0.29 Hz c. 290 Hz d. 4.4 Hz e. 29 kHz
A bat flying at 5.25 m/s is chasing an insect flying at 3.49 m/s in the same direction. The bat emits a steady chirp of frequency 2000 Hz. a. What frequency, f0, does the insect hear? b. The insect becomes a moving source at frequency f0. What frequency does the bat hear reflected from the insect? c. The bat hears its own sound, plus the sound reflected by the insect. What beat frequency does the bat hear?