5. If you want to hear a train approaching from far away, why is it more convenient to put the ear to the track?
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If you want to hear a train approaching from far away, why is it more convenient to put the ear to the track? Answer: It is more convenient to put the ear to the track because sound waves travel faster in solids than in air.
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It is more convenient to put the ear to the track because sound waves travel faster in solids than in air
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