Conceptual Physics (12th Edition)

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

Chapter 24 - Think and Explain: 70

Answer

See below.

Work Step by Step

The technique of magnetic levitation eliminates rail friction, because the train doesn't even touch the rail. Drag forces (forces due to friction with air) remain.
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