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Author Question: Perforations, or tiny holes in metal, wood, and mineral ceiling tiles are designed to help absorb ... (Read 76 times)

theo

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Perforations, or tiny holes in metal, wood, and mineral ceiling tiles are designed to help absorb sound.
 
   True
   False
  Indicate whether the statement is true or false

Question 2

A smooth, dense wall of painted concrete:
 
   Reflects all the sound striking its surface
   Reflects only a small percentage of sound
  striking its surface
   Absorbs only a small percentage of sound striking
  its surface
   Absorbs all of the sound striking its surface



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fatboyy09

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Answer to Question 1

True

Answer to Question 2

Absorbs only a small percentage of sound
striking its surface




theo

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Reply 2 on: Aug 28, 2018
:D TYSM


aruss1303

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Reply 3 on: Yesterday
Wow, this really help

 

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