Conceptual Physics (12th Edition)

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

Part 8 - Multiple-Choice Practice Exam: 18

Answer

If a star that is 20 light years from Earth explodes, gravitational waves from the explosion would reach Earth in 20 years.

Work Step by Step

Gravitational waves travel at the speed of light. This is discussed on page 696.
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