Physics, 28.02.2020 04:32 naomiedgrey

The hammering on a train track is often heard twice by workers farther down the track; first as the sound travels through the steel
and second as the sound travels through the air. This suggests which graph is true?

Answers: 1

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The hammering on a train track is often heard twice by workers farther down the track; first as the sound travels through the steel and second as the sound travels through the air. This suggests which graph is true?

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The hammering on a train track is often heard twice by workers farther down the track; first as the sound travels through the steel
and second as the sound travels through the air. This suggests which graph is true?