Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

by Knight, Randall D.

Published by Pearson

ISBN 10: 0133942651

ISBN 13: 978-0-13394-265-1

Chapter 18 - A Macroscopic Description of Matter - Stop to Think 18.1 - Page 492: 1

Answer

$20$ Pa

Work Step by Step

$\Delta p$ basically means change in pressure. Hence, it is the difference (later minus before) between the measured magnitudes. $$\Delta p = 120 Pa - 100 Pa = 20 Pa$$

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