Posted by **allen** on Saturday, June 21, 2014 at 4:57pm.

A sound registers 77.9 decibels on a detector. What is the intensity in W/m2? Assume the threshold of human hearing is 1.0×10-12 W/m2. Give your answer in picowatts/m2.

1 pW = 1×10-12 W/m2

## Answer this Question

## Related Questions

- Physics - I'm not sure how to calculate this question help me! (Grade 11 Physics...
- Math - On th decibel scale, the loudness of a sound, in decibels, is given by D=...
- Math - Formula given: The decibel (dB) scale for measuring loudness, d, is given...
- physics - Sound is passing perpendicularly through an open window whose ...
- Grade 12 Math Please help!! - Please can anyone answer this which I have posted ...
- physics - A stereo speaker emits sound waves with a power output of 100W. (a) ...
- Physics - Hearing damage may occur when a person is exposed to a sound intensity...
- Algebra 2 - Can someone help me? I'm really confused. The loudness L of a sound ...
- algebra 2 - the loudness L of a sound in decibels is given L=10log10R, where R ...
- Physics - The intensity due to a number of indipendent sound sources is the sum ...

More Related Questions