What is the threshold for pain in decibels?

AI Thread Summary
A decibel is a unit used to measure sound intensity, with the threshold for pain typically around 120 to 130 decibels. Standing waves occur when waves of the same amplitude and wavelength travel in opposite directions. Sound waves are produced by vibrating objects, which create pressure changes in the air. The human ear receives sound through the outer ear, which funnels it to the eardrum, and then transmits the vibrations to the brain via the auditory nerve. The discussion emphasizes the importance of personal effort in seeking answers rather than relying solely on others for information.
bebe_boobs
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1) what is a decibel? What is the threhold for pain in decibels?
2) what is a standing wave?
3) what produces sound waves?
4) Explain how the human ear receives sound and transmits it to the brain
THANKS,
 
Physics news on Phys.org
1) What is google?
Google is your friend.
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Google is good for finding stuff on the internet.
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Google is a company in Palo Alto, California.
4) Why didn't you answer my question?
Because you apparently haven't put even basic effort into finding the answer.
 
1) a decibel is used to measure sound intensity level
2) standing wave is created when waves traveling in opposite directions have the same ampliture and wavelength
 
Good Lord! if I renamed myself Cathy Cleavage could I sucker you people into doing my homework for me, too? Are you THAT easy?

I agree with Nate. Don't hand over the answers until some effort has been shown.:approve:
 
I agree 100 percent dont... i mean if you spent the same amount of time typing those questions on google you would get the answer.

cmon guys have some common sense. this is some guy with the screen name "bobbies" and everyone is standing in line to handover the answers.
 
im sorry if i caused any inconvience
 

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