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Author Question: A source of sound waves is placed at the center of a very large sound-reflecting wall. The source ... (Read 282 times)

RODY.ELKHALIL

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on: Aug 6, 2020

Question 1

A sculptor strikes a piece of marble with a hammer. Find the speed of sound through the marble (in km/s). (The Young's modulus is 50 × 109 N/m2 and its density is 2.7 × 103 kg/m3.)

◦
5.1

◦
4.3

◦
3.5

◦
1.3

◦
1.8


Question 2

A source of sound waves is placed at the center of a very large sound-reflecting wall. The source emits 0.500 W of power. Two meters from the source the intensity in W/m2 is

◦
9.95 × 10−3.

◦
1.99 × 10−2.

◦
0.313.

◦
0.399.

◦
0.625.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by RODY.ELKHALIL on Aug 6, 2020

amcvicar

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Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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RODY.ELKHALIL

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Reply 2 on: Aug 6, 2020
Gracias!

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Reply 3 on: Yesterday
:D TYSM

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