Two people are moving in opposite directions relative to each other. One person is playing a trumpet with a frequency of 403 Hz. If the person with the trumpet hasa speed of 33.4, moving away from the other person, what must the speed of the other person be if they are to perceive the trumpet sound as having a frequency of361 Hz? Your answer here can be positive or negative depending on relative motion towards or away. Assume that it is 20 °C.Towards = +Away = -

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Answered: Two people are moving in opposite…

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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The coldest recorded temperature of air on Earth, -128.6°F, occurred on July 21, 1983, at Vostok, a Russian station in Antarctica. What is the speed of sound in air at this temperature? m/s
There was an accident and NASA engineers are trying to sort out where two of their Mars Rovers, Tango and Foxtrot, have landed. The engineers know that landing site A is much hotter than landing site B. Unfortunately, the only working sensors on Tango and Foxtrot measure the speed of sound. If Tango measures the speed of sound at it's landing site as 240 m/s, while Foxtrot measures speed of sound as 258 m/s at it's landing site, where has each rover landed?
A 520 Hz whistle is moved toward a listener at a speed of 20 m/s. At the same time, the listener moves at a speed of 45 m/s in a direction away from the whistle. What is the apparent frequency heard by the listener? (The speed of sound is 340 m/s)
A sound source with a frequency of 725 Hz moves away from a stationary observer at a rate of 15m/s. What frequency does the observer hear?
On a warm summer day (33 ∘C), it takes 4.90 s for an echo to return from a cliff across a lake. On a winter day, it takes 5.30 s . The speed of sound in air is v≈(331+0.60T)m/s, where T is the temperature in ∘C. What is the temperature on the winter day?
You are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. You use your fog horn to send out a blast of sound (assume the temperature of the air is 20 oC) and the time it takes for the sound to return to you is 20.0 s. How far away are the cliffs (in metric units)? Hint: Be careful and think about the physics of the problem. You may want to make a sketch of the situation to help you determine the answer. 1798 m 3444 m 3596 m 7192 m
The speed of sound in air is 331 m/s at atmospheric pressure and 0 Celsius. Suppose you put a electronic pinger in an air-tight glass jar and change the pressure of the air inside by a factor 1.3, while the volume, composition and temperature of the air remain the same. What speed would you measure for the sound inside the jar? Give your answer in m/s.
An observer is standing stationary in air moving at a speed of 2m/s. A source of frequency 20Hz is moving in the direction of wind with speed 10m/s towards the observer. What will be the frequency as heard by the observer? Speed of sound in air is 330m/s
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A 38.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at 20.0°C is 1.20 kg/m3. Speed of sound in air at 20.0°C is 343 m/s. What is the displacement amplitude of a 38.0-Hz sound wave? What is the ratio of the displacement amplitude to the average distance between molecules in air at room temperature, about 3.00 nm?
Standing at a crosswalk, you hear a frequency of 590 Hz from the siren of an approaching ambulance. After the ambulance passes, the observed frequency of the siren is 501 Hz. Determine the ambulance's speed from these observations. (Take the speed of sound to be 343 m/s.) m/s

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