(10%) Problem 4: You place your ear onto a steel railroad track and hear the sound...

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(10%) Problem 4: You place your ear onto a steel railroad track and hear the sound of a distant train through the rails At = 3.9 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. ta = 25% Part (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. notext cancel Hints: 0% deduction per hint. Hints remaining: B 6.0 M g k t Submit В Ө h m Va Hint At D j P Vs ^^^ 4 5 6 1 2 3 + * I 7 8 9 HOME VBACKSPACE Feedback DEL I give up! END CLEAR Feedback: 0% deduction per feedback. 25% Part (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. A 25% Part (c) Use the difference in these two times to write an equation for the distance to the train. 25% Part (d) For the given information find the distance to the train in meters. (10%) Problem 4: You place your ear onto a steel railroad track and hear the sound of a distant train through the rails At = 3.9 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. ta = 25% Part (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. notext cancel Hints: 0% deduction per hint. Hints remaining: B 6.0 M g k t Submit В Ө h m Va Hint At D j P Vs ^^^ 4 5 6 1 2 3 + * I 7 8 9 HOME VBACKSPACE Feedback DEL I give up! END CLEAR Feedback: 0% deduction per feedback. 25% Part (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. A 25% Part (c) Use the difference in these two times to write an equation for the distance to the train. 25% Part (d) For the given information find the distance to the train in meters.

Answer rating: 100% (QA)

Solution We have velocity of sound in steel V6100ms Velocity of sound in air va 343 mlS at 39 secon... View the full answer