Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 10 - Fluids - General Problems - Page 289: 82

Answer

The range of forces is $100 \;N\leq F \leq 150\;N$.

Work Step by Step

The force in each case is the pressure multiplied by the area of the plunger. $$F_i=P_iA=(2.10\times10^5\;N/m^2)\pi(0.0125\;m)^2=1.0\times10^2\;N$$ $$F_f=P_fA=(3.10\times10^5\;N/m^2)\pi(0.0125\;m)^2=1.5\times10^2\;N$$
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