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Author Question: One reason for the higher pitch of your voice after you've inhaled some helium is that sound travels ... (Read 153 times)

azncindy619

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on: Jul 29, 2018
One reason for the higher pitch of your voice after you've inhaled some helium is that sound travels
 
  A) slower in helium than in air.
  B) faster in helium than in air.
  C) the same speed in helium but with a longer wavelength.

Question 2

Refraction of sound can occur in
 
  A) air.
  B) water.
  C) both of these
  D) neither of these


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triiciiaa

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


azncindy619

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

bimper21

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Reply 3 on: Yesterday
Wow, this really help

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