Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 35 - Think and Discuss: 88


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We don't ever encounter macroscopic objects moving near the speed of light. The effects of relativity become noticeable only when speeds approach the speed of light, or when energies change by amounts comparable to $mc^{2}$. In our everyday world, things move much more slowly than c, and we don't generally have access to particle accelerators or nuclear power plants. Classical mechanics makes sense, based on everyday experience, while relativity doesn't.
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