Conceptual Physics (12th Edition)

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

Chapter 14 - Reading Check Questions (Comprehension): 8

Answer

Both weights are the same.

Work Step by Step

Both pressures are the same because their balance keeps the mercury in the tube. Because the 2 cross-sectional areas are also the same, so too are the forces (weights). This is discussed on page 268, and shown in Figure 14.7.
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