This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Perforations, or tiny holes in metal, wood, and mineral ceiling tiles are designed to help absorb ... (Read 46 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Aug 28, 2018
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
Reply #1 on: Aug 28, 2018
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
Wow, this really help

steff9894

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

« previous next »
 

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?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Speckled wood aegeria sub-species, Algendar gorge, Minorca Speckled wood aegeria sub-species, Algendar gorge, Minorca
Butterfly systems designed for safety and ease of use. (A) A safety shield slides down over the ... Butterfly systems designed for safety and ease of use. (A) A safety shield slides down over the ...
National Institute on Aging Web site is designed to be easy to use by older adults. It utilizes ... National Institute on Aging Web site is designed to be easy to use by older adults. It utilizes ...
A 400-g piece of metal at 120°C is dropped into a cup containing 450 g of water A 400-g piece of metal at 120°C is dropped into a cup containing 450 g of water
Two tiny particles having charges of +7.00 μC and -9.00 μC are placed along the y-axis. The ... Two tiny particles having charges of +7.00 μC and -9.00 μC are placed along the y-axis. The ...
Video: Introduction to Eating Disorders

For a complete list of videos, visit our video library