Conceptual Physics (12th Edition)

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

Chapter 13 - Think and Explain: 98

Answer

The razor is not floating in water, but resting on the thin film created by surface tension. The cohesive forces attracting water molecules together are strong enough to resist the small weight of the blade.

Work Step by Step

This is discussed on page 257 and shown in Figure 13.29.
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