You place your ear onto a steel railroad track and hear the sound of a distant train through the rails Δt = 3.5 seconds before you do through the air. The speed of sound in steel is vs = 6100 m/s, and and the air temperature is 48° C. Find the distance, D, 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 Δt = 3.5 seconds before you do through the air. The speed of sound in steel is vs = 6100 m/s, and and the air temperature is 48° C. Find the distance, D, to the train in meters.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter39: Relativity

Section: Chapter Questions

Problem 31PQ

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The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.

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You place your ear onto a steel railroad track and hear the sound of a distant train through the rails Δt = 3.5 seconds before you do through the air. The speed of sound in steel is v_s = 6100 m/s, and and the air temperature is 48° C.

Find the distance, D, to the train in meters.

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