jaden6252
jaden6252 jaden6252
  • 07-04-2022
  • Physics
contestada

A sound travels down a hallway that is 115 m long. Then it echoes and
returns back to the source. If the speed of sound is 350 m/s, how long
does it take in seconds) to hear the echo?

Respuesta :

ganjilaya2019
ganjilaya2019 ganjilaya2019
  • 07-04-2022

Answer:

0.66 s

Explanation:

∆x = v∆t → 2 × 115 = 350 ∆t → ∆t = 230/350 = 0.66 s

Answer Link

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