Two atmospheric sound sources A and B emit isotropically
Chapter , Problem 34(choose chapter or problem)
Two atmospheric sound sources A and B emit isotropically at constant power. The sound levels b of their emissions are plotted in Fig. 17-40 versus the radial distance r from the sources. The vertical axis scale is set by b1 # 85.0 dB and b2 # 65.0 dB. What are (a) the ratio of the larger power to the smaller power and (b) the sound level difference at r # 10 m? 1 100 500 r (m) 1000 (dB) 2 A B Figure 17-40 34
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