Two atmospheric sound sources A and Bemit isotropically at constant power. The sound levels Bof their emissions are plotted in the figure versus the radial distancer from the sources. The vertical-axis scale is set by B 82.0 dB andB2 66.0 dB. What are (a) the rati of the larger power to the smaller power and (b) the difference in their sound levels at r 8.70 m? 100 S00 1000 (m)
Two atmospheric sound sources A and Bemit isotropically at constant power. The sound levels Bof their emissions are plotted in the figure versus the radial distancer from the sources. The vertical-axis scale is set by B 82.0 dB andB2 66.0 dB. What are (a) the rati of the larger power to the smaller power and (b) the difference in their sound levels at r 8.70 m? 100 S00 1000 (m)
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Transcribed Image Text:Two atmospheric sound sources A and B emit isotropically at constant power. The sound levels B of their emissions are plotted in the
figure versus the radial distancer from the sources. The vertical-axis scale is set by B- 82.0 dB and B2 66.0 dB. What are (a) the rati
of the larger power to the smaller power and (b) the difference in their sound levels at r 8.70 m?
100
500
1000
r(m)
Units
No units
(a) Numder
2.50
Units
d
(b) Number
3.96
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