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 29 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
Thanks for the timely response, appreciate it


abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

For a complete list of videos, visit our video library