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stich3 [128]
3 years ago
11

A small radio speaker is suspended inside a spherical balloon. The balloon has a radius of 0.50 m. The power of the sound wave e

mitted from the speaker is 12 W. What is the intensity of the sound at the surface of the balloon? (The surface area [A] of the balloon is given by A=4πr2 .)
Radio frequency diagram - Wave Characteristics 25

A.
2.5 W/m2
B.
3.8 W/m2
C.
5.5 W/m2
D.
6.4 W/m2
Biology
1 answer:
sergey [27]3 years ago
7 0

Answer:pls no ban me only poor children

Explanation:

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