Geography, 31.07.2019 05:20 hailey2910

If the swl of a busy trafficfrom a road is 75 db, what is the spl if the receiver is at (i) 10 m and (ii) 20 m from the road? assume the road surface is absorptive (i. e., full-cylinder).

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If the swl of a busy trafficfrom a road is 75 db, what is the spl if the receiver is at (i) 10 m and...

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