Oregon State University
Physics 202
,
Winter 2010
HW34
(due Feb. 1 at 5:00 p.m.)
4
Page 1
Oregon State University
Physics 202
Winter Term, 2010
HW34
This HW assignment, due February 1, covers topics from Chapter
o
15 of the text.
Of these problems, two will be
scored (for a possible 10 points each). Donʼt forget the extra credit point that is available, too—see the course
web site, under the links for recitation/Homework (HW).
Follow the recommended format for problem solutions,
use SI units unless directed otherwise, and assume three signi±
cant digits in all numerical answers
.
1.
Chapter 15, Problem 62 (page 505).
2.
Two sources of sound are located on the
x
axis, and each emits power uniformly in all directions.
There are
no reﬂ
ections.
One source is positioned at the origin.
The other source is at
x
= 132 m.
The source at the
origin emits four times as much power as the other source.
Find the two positions along the
x
axis where the
two sounds are equal in intensity.
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