Trucks 1 and 2 each have a siren emitting a pure tone of606 Hz. Truck 1 remains stationary and truck 2 moves at14.1 m/s toward the observer as shown in the diagram. Thespeed of sound is 340 m/s. The observer must run at aspeed ofm/s (along a line segment connecting thetrucks, although direction right or left is not given) to makethe observed beat frequency become zero?D옷+2

Answered: Image /qna-images/answer/ebb0d5c9-d03b-475d-8baa-7b1f50384f4a.jpg

Answered: Trucks 1 and 2 each have a siren…

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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A spherical wave with a wavelength of 4.1 m is emitted from the origin. At one instant of time, the phase at x1 = 5.1 m is ?1ϕ1= ?π rad. At that instant, what is the phase (In radians) at x2 = 4 m?
Two flute players are playing notes on slightly different flutes. Flute A is a narrow tube, open on both ends, and is 0.4 m long. Flute B is similar, except it is 0.38 m long. Assume that the speed of sound is 343 m/s. (a) What is the beat frequency when the two flutes are played together? Explain. (b) How should flute B be moved (i.e., speed and direction), if we want to eliminate the beat? Is this a reasonable way to put the two flutes in tune with each other? Explain.
Two trains on separate tracks move toward one another. Train 1 has a speed of 120 km/h, train 2 a speed of 65.0 km/h. Train 2 blows its horn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1? (Assume the speed of sound is 345 m/s.) Hz
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A train is moving parallel and adjacent toa highway with a constant speed of 34 m/s.A car is traveling in the same direction as thetrain at 65 m/s. The train’s whistle sounds at380 Hz.When the car is behind the train what frequency does an occupant of the car observefor the train whistle? The speed of sound is343 m/s.Answer in units of Hz
A student holds a tuning fork oscillating at 256 Hz. He walks toward a wall at a constant speed of 1.45 m/s. (a) What beat frequency does he observe between the tuning fork and its echo? 0.08 x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. Hz (b) How fast must he walk away from the wall to observe a beat frequency of 5.60 Hz? 5.60 X Your response differs from the correct answer by more than 10%. Double check your calculations. m/s
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Two trains on separate tracks move toward each other. Train 1 has a speed of 149 km/h; train 2, a speed of 95.0 km/h. Train 2 blows its horn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1?

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