Using the results of Problem 1.7, show that de r / d = e and de

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Using the results of Problem 1.7, show that der / dθ = eθ and deθ /dθ = – er.


Data From Problem 1.7

Show that the unit vectors er and eθ in a cylindrical coordinate system are related to the unit vectors ex and ey by

er = ex cos θ + esin θ

and

eθ = ex sin θ + ey cos θ

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Fundamentals Of Momentum Heat And Mass Transfer

ISBN: 9781119723547

7th Edition

Authors: James Welty, Gregory L. Rorrer, David G. Foster

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