1.A train is on a highway with a constant speed of 20.0 m/s. A car is traveling in theopposite direction as the train with a speed of 40.0 m/s. The car horn sounds at afrequency of 510 Hz, and the train whistle sounds at a frequency of 320 Hz.(a) When the car and train are approaching each other, what frequency does anoccupant of the car observe for the train whistle?(b) After the car and train pass each other, what frequency does a trainpassenger observe for the car horn?

(a) The Doppler shifted frequency when the source and the observer are moving toward each other.…

(a) When the car and train are approaching each other, what frequency does an occupant of the car observe for the train whistle? (b) After the car and train pass each other, what frequency does a train passenger observe for the car horn? /

(a) When the car and train are approaching each other, what frequency does an occupant of the car observe for the train whistle? (b) After the car and train pass each other, what frequency does a train passenger observe for the car horn? /

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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Concept explainers

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.

Question

1.
A train is on a highway with a constant speed of 20.0 m/s. A car is traveling in the
opposite direction as the train with a speed of 40.0 m/s. The car horn sounds at a
frequency of 510 Hz, and the train whistle sounds at a frequency of 320 Hz.
(a) When the car and train are approaching each other, what frequency does an
occupant of the car observe for the train whistle?
(b) After the car and train pass each other, what frequency does a train
passenger observe for the car horn?

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