College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 9 - Multiple-Choice Questions - Page 359: 7


The correct answer is: (a) conservation of mass

Work Step by Step

We can write the continuity equation like this: $\rho~A_1~v_1 = \rho~A_2~v_2$ $A$ is cross-sectional area $v$ is velocity Therefore, the expression $~~A~v~~$ is the volume flow per unit time. Then $~~\rho~A~v~~$ is the mass flow per unit time. The form of the continuity equation shows that the rate of mass flow is conserved. The correct answer is: (a) conservation of mass
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.