- #1

emma123

- 29

- 0

and also if Adam hears something that sounds like a whisper then what would a person w/o protectors hear? is there even a difference....

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter emma123
- Start date

- #1

emma123

- 29

- 0

and also if Adam hears something that sounds like a whisper then what would a person w/o protectors hear? is there even a difference....

- #2

physicsprasanna

- 20

- 0

The decibel is a logarithmic scale. The decibel level can be calculated by

[tex]\beta=10\log_{10}{\frac{I}{I_{0}}}[/tex]

where [tex]I_{0}[/tex] is a constant reference intensity = [tex]10^{-12}W/m^{2}[/tex] This is roughly the intensity of a just audible sound.

Your problem can be solved only if the intensity of the chain saw is known.

I don't understand your problem .... sorry ....

who are those protectors??? and how can they reduce the sound of an aeroplane??

[tex]\beta=10\log_{10}{\frac{I}{I_{0}}}[/tex]

where [tex]I_{0}[/tex] is a constant reference intensity = [tex]10^{-12}W/m^{2}[/tex] This is roughly the intensity of a just audible sound.

Your problem can be solved only if the intensity of the chain saw is known.

I don't understand your problem .... sorry ....

who are those protectors??? and how can they reduce the sound of an aeroplane??

Last edited:

- #3

BobG

Science Advisor

Homework Helper

- 330

- 84

Do you understand the relationship physicsprasanna gave? If you do, then you'll realize why decibels come in so handy. They turn a multiplication problem into an addition problem (i.e. - if the sound is the same as a barely audible whisper (0 dB), then a person without ear protection will hear a sound 40dB louder).

Share:

- Last Post

- Replies
- 8

- Views
- 371

- Last Post

- Replies
- 5

- Views
- 1K

- Last Post

- Replies
- 4

- Views
- 227

- Last Post

- Replies
- 2

- Views
- 177

- Last Post

- Replies
- 8

- Views
- 245

- Last Post

- Replies
- 11

- Views
- 305

- Replies
- 4

- Views
- 162

- Last Post

- Replies
- 1

- Views
- 221

- Last Post

- Replies
- 3

- Views
- 178

- Last Post

- Replies
- 1

- Views
- 238