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Triathlete
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Second problem of the day...
(part 1 of 2)
A spherical source radiates sound uniformly
in all directions. At a distance of 52 m, the
sound intensity level is 46 dB.
At what distance from the source is the
intensity level 13 dB?
Answer in units of m
(part 2 of 2)
What power is radiated by this source?
Answer in units of W
I = P/A
A = 4[itex]\pi[/itex]r2
I got part 1, which is 2322.8 m. But I'm not sure where to go from here. All I know is I need to solve for P in the equation but I'm not sure what to do for I.
Homework Statement
(part 1 of 2)
A spherical source radiates sound uniformly
in all directions. At a distance of 52 m, the
sound intensity level is 46 dB.
At what distance from the source is the
intensity level 13 dB?
Answer in units of m
(part 2 of 2)
What power is radiated by this source?
Answer in units of W
Homework Equations
I = P/A
A = 4[itex]\pi[/itex]r2
The Attempt at a Solution
I got part 1, which is 2322.8 m. But I'm not sure where to go from here. All I know is I need to solve for P in the equation but I'm not sure what to do for I.