anonymous
  • anonymous
How far do sound waves travel in 1.00 × 10^-3 s in air at 20°C? A. 3.43 × 10^-3 m B. 3.43 × 10^-2 m C. 3.43 × 10^-1 m D. 3.43 × 10^1 m **Not sure :( thank you!
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Michele_Laino
  • Michele_Laino
we have to compute this: \[\Large d = vt = 343 \times {10^{ - 3}} = ...meters\]
Michele_Laino
  • Michele_Laino
since the speed of the sound in air at 20°C is about 343 m/sec
anonymous
  • anonymous
okay!! so we get 0.343 ? so is choice A our solution?

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Michele_Laino
  • Michele_Laino
that's right!
Michele_Laino
  • Michele_Laino
please wait, it is: 0.343 ok! so it is option C
anonymous
  • anonymous
ohhh right!! it is positive!! so C it is!! :D thank you!
Michele_Laino
  • Michele_Laino
thank you!! :)

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