2nd Edition

ISBN: 9780134862897

Author: ETKINA

Publisher: PEARSON

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Textbook Question

Chapter 25, Problem 20P

25.4 and 25.5 Frequency, wavelength, and the electromagnetic spectrum and Mathematical description of EM waves and EM wave energy

20 * The electric field in a sinusoidal wave changes as

E = ( 25 N/C) cos [( 1 .2 × 10 11 rad/s ) t + ( 4.2 × 10 2 rad/m ) x ]

(a) In what direction does the wave propagate? (b) What is the amplitude of the electric field oscillations? (c) What is the amplitude of the magnetic field oscillations? (d) What is the frequency of the wave? (e) What is the wavelength? (f) What is the speed? (g) What other information can you infer from the equation?

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Chapter 25, Problem 19P

Chapter 25, Problem 21P

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Chapter 25 Solutions

COLLEGE PHYSICS:VOL.1

Ch. 25 - Review Question 25.1 What is the difference...Ch. 25 - Review Question 25.2 What needs to happen to...Ch. 25 - Review Question 25.3 How are GPS and radar...Ch. 25 - Review Question 25.4 If the frequency of one...Ch. 25 - Review Question 25.5 Electromagnetic waves are...Ch. 25 - Review Question 25.6 Explain why polarizing...Ch. 25 - Multiple Choice Questions The fact that light can...Ch. 25 - Multiple Choice Questions What does a beam of...Ch. 25 - Multiple Choice Questions What does Faraday's law...Ch. 25 - Multiple Choice Questions 4. Maxwell's hypothesis...

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