This topic contains a solution. Click here to go to the answer

Author Question: Perforations, or tiny holes in metal, wood, and mineral ceiling tiles are designed to help absorb ... (Read 75 times)

theo

  • Hero Member
  • *****
  • Posts: 698
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fatboyy09

  • Sr. Member
  • ****
  • Posts: 358
Answer to Question 1

True

Answer to Question 2

Absorbs only a small percentage of sound
striking its surface




theo

  • Member
  • Posts: 698
Reply 2 on: Aug 28, 2018
Excellent


Sarahjh

  • Member
  • Posts: 370
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

For a complete list of videos, visit our video library