7.Consider sound dB level is increased from 70 dB to 83 dB, what is the intensity increased? Take the ratio of hlI1 =? 8.Consider a speaker is heard from a distance of l O meters, the sound level is 20 dB, what will the dB level be if youmoved to 50 meters away?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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NEED HELP WITH 7 and 8

Consider a concert grand piano, the bass string is 9 ft Jong with a mass of 50 grams. When it is tensioned up to 80 lbs,

5. what is the transverse wave velocity along the string? 1 m = 3 .28 ft, l lb = 4.45 Newtons. Answer 140.63

6.Still refers to the bass string, what is the fundamental frequency under .80 lb of tension? Answer 25.47

7.Consider sound dB level is increased from 70 dB to 83 dB, what is the intensity increased? Take the ratio of hlI1 =?

8.Consider a speaker is heard from a distance of l O meters, the sound level is 20 dB, what will the dB level be if youmoved to 50 meters away?

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