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You place your ear onto a steel railroad track and hear the sound of a distant train through the rails At = 4.2 seconds faster than you do through the air. The speed of sound in steel is vs = 6100 m/s while in air the speed of sound is v₂ = 343 m/s. a. Write an equation for the time it takes the sound to reach you through the air if the distance to the train is represented by D. b. Write an equation for the time it takes the sound to reach you through the steel if the distance to the train is represented by D. c. Use the difference in these two times to write an equation for the distance to the train. d. For the given information find the distance to the train in meters.

You place your ear onto a steel railroad track and hear the sound of a distant train through the rails At = 4.2 seconds faster than you do through the air. The speed of sound in steel is vs = 6100 m/s while in air the speed of sound is v₂ = 343 m/s. a. Write an equation for the time it takes the sound to reach you through the air if the distance to the train is represented by D. b. Write an equation for the time it takes the sound to reach you through the steel if the distance to the train is represented by D. c. Use the difference in these two times to write an equation for the distance to the train. d. For the given information find the distance to the train in meters.

College Physics
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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You place your ear onto a steel railroad track and hear the sound of a distant train through the rails At = 4.2 seconds faster than you do through the air. The speed of sound in steel is vs = 6100 m/s while in air the speed of sound is va = 343 m/s. a. Write an equation for the time it takes the sound to reach you through the air if the distance to the train is represented by D. b. Write an equation for the time it takes the sound to reach you through the steel if the distance to the train is represented by D. c. Use the difference in these two times to write an equation for the distance to the train. d. For the given information find the distance to the train in meters.
Transcribed Image Text:You place your ear onto a steel railroad track and hear the sound of a distant train through the rails At = 4.2 seconds faster than you do through the air. The speed of sound in steel is vs = 6100 m/s while in air the speed of sound is va = 343 m/s. a. Write an equation for the time it takes the sound to reach you through the air if the distance to the train is represented by D. b. Write an equation for the time it takes the sound to reach you through the steel if the distance to the train is represented by D. c. Use the difference in these two times to write an equation for the distance to the train. d. For the given information find the distance to the train in meters.
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