COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 22, Problem 51QAP
To determine
(a)
Whatrange of wavelengths (in nanometers) could cause DNA breaks if a recent study found that electrons having energies between 3.0 and 20 eV can cause breaks in aDNA molecule even though they do not ionize the molecule, the energy were to come from light?
To determine
(b)
In what part of the electromagneticspectrum does the light lie?
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Required information
Two speakers vibrate in phase with each other at 523 Hz. At certain points in the room, the sound waves from the two
speakers interfere destructively. One such point is 1.45 m from speaker #1 and is between 2.00 m and 4.00 m from
speaker #2. The speed of sound in air is 343 m/s.
How far is this point from speaker #2?
m
a) Consider the following function, where A is a constant.
y(x,t) = A(x — vt).
Can this represent a wave that travels along? Explain.
b) Which of the following are possible traveling waves, provide your reasoning and give the velocity of the
wave if it can be a traveling wave.
e-(a²x²+b²²-2abtx
b.1) y(x,t)
b.2) y(x,t)
=
=
A sin(ax² - bt²).
2
b.3) y(x,t)
=
A sin 2π
(+)
b.4) y(x,t)
=
A cos² 2π(t-x).
b.5) y(x,t)
=
A cos wt sin(kx - wt)
Chapter 22 Solutions
COLLEGE PHYSICS
Ch. 22 - Prob. 1QAPCh. 22 - Prob. 2QAPCh. 22 - Prob. 3QAPCh. 22 - Prob. 4QAPCh. 22 - Prob. 5QAPCh. 22 - Prob. 6QAPCh. 22 - Prob. 7QAPCh. 22 - Prob. 8QAPCh. 22 - Prob. 9QAPCh. 22 - Prob. 10QAP
Ch. 22 - Prob. 11QAPCh. 22 - Prob. 12QAPCh. 22 - Prob. 13QAPCh. 22 - Prob. 14QAPCh. 22 - Prob. 15QAPCh. 22 - Prob. 16QAPCh. 22 - Prob. 17QAPCh. 22 - Prob. 18QAPCh. 22 - Prob. 19QAPCh. 22 - Prob. 20QAPCh. 22 - Prob. 21QAPCh. 22 - Prob. 22QAPCh. 22 - Prob. 23QAPCh. 22 - Prob. 24QAPCh. 22 - Prob. 25QAPCh. 22 - Prob. 26QAPCh. 22 - Prob. 27QAPCh. 22 - Prob. 28QAPCh. 22 - Prob. 29QAPCh. 22 - Prob. 30QAPCh. 22 - Prob. 31QAPCh. 22 - Prob. 32QAPCh. 22 - Prob. 33QAPCh. 22 - Prob. 34QAPCh. 22 - Prob. 35QAPCh. 22 - Prob. 36QAPCh. 22 - Prob. 37QAPCh. 22 - Prob. 38QAPCh. 22 - Prob. 39QAPCh. 22 - Prob. 40QAPCh. 22 - Prob. 41QAPCh. 22 - Prob. 42QAPCh. 22 - Prob. 43QAPCh. 22 - Prob. 44QAPCh. 22 - Prob. 45QAPCh. 22 - Prob. 46QAPCh. 22 - Prob. 47QAPCh. 22 - Prob. 48QAPCh. 22 - Prob. 49QAPCh. 22 - Prob. 50QAPCh. 22 - Prob. 51QAPCh. 22 - Prob. 52QAPCh. 22 - Prob. 53QAPCh. 22 - Prob. 54QAP
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