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Solutions for Chapter 33: Fundamentals of Physics: 9th Edition

Fundamentals of Physics: | 9th Edition | ISBN: 9780470556535 | Authors: David Halliday; Robert Resnick; Jearl Walker

Full solutions for Fundamentals of Physics: | 9th Edition

ISBN: 9780470556535

Fundamentals of Physics: | 9th Edition | ISBN: 9780470556535 | Authors: David Halliday; Robert Resnick; Jearl Walker

Solutions for Chapter 33

Solutions for Chapter 33
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Textbook: Fundamentals of Physics:
Edition: 9
Author: David Halliday; Robert Resnick; Jearl Walker
ISBN: 9780470556535

Summary of Chapter 33:

The information age in which we live is based almost entirely on the physics of electromagnetic waves. Like it or not, we are now globally con- nected by television, telephones, and the Web. And like it or not, we are con- stantly immersed in those signals because of television, radio, and telephone transmitters. Much of this global interconnection of information processors was not imagined by even the most visionary engineers of 20 years ago. The challenge for today's engineers is trying to envision what the global interconnection will be like 20 years from now. The starting point in meeting that challenge is understanding the basic physics of electromagnetic waves, which come in so many different types that they are poetically said to form Maxwell's rainbow. The crowning achievement of James Clerk Maxwell (see Chapter 32) was to show that a beam of light is a traveling wave of electric and magnetic fields-an electromagnetic wave-and thus that optics, the study of visible light, is a branch of electromagnetism. In this chapter we move from one to the other: we conclude our discussion of strictly electrical and magnetic phenomena, and we build a foundation for optics. In Maxwell's time (the mid 1800s), the visible, infrared, and ultraviolet forms of light were the only electromagnetic waves known. Spurred on by Maxwell's work, however, Heinrich Hertz discovered what we now call radio waves and verified that they move through the laboratory at the same speed as visible light. As Fig. 33-1 shows, we now know a wide spectrum (or range) of electromag- netic waves: Maxwell's rainbow. Consider the extent to which we are immersed in electromagnetic waves throughout this spectrum. The Sun, whose radiations define the environment in which we as a species have evolved and adapted, is the dominant source. We are also crisscrossed by radio and television signals. Microwaves from radar systems and from telephone relay systems may reach us. There are electromagnetic waves from lightbulbs, from the heated engine blocks of automobiles, from x-ray machines, from lightning flashes, and from buried • radioactive materials. Beyond this, radiation reaches us from stars and other • objects in our galaxy and from other galaxies. Electromagnetic waves also travel • in the other direction. Television signals, transmitted from Earth since about • 1950, have now taken news about us (along with episodes of I Love Lucy, albeit very faintly) to whatever technically sophisticated inhabitants there may be on whatever planets may encircle the nearest 400 or so stars.

Fundamentals of Physics: was written by and is associated to the ISBN: 9780470556535. This expansive textbook survival guide covers the following chapters and their solutions. Since 93 problems in chapter 33 have been answered, more than 102997 students have viewed full step-by-step solutions from this chapter. Chapter 33 includes 93 full step-by-step solutions. This textbook survival guide was created for the textbook: Fundamentals of Physics:, edition: 9.

Key Physics Terms and definitions covered in this textbook
  • //

    parallel

  • any symbol

    average (indicated by a bar over a symbol—e.g., v¯ is average velocity)

  • °C

    Celsius degree

  • °F

    Fahrenheit degree