Answer
$R-factor = 25 \frac{^{\circ} F ft^2 h}{Btu}$
Work Step by Step
We find:
$R-factor= \frac{ \Delta T}{ H}$
We plug in the given values:
$ R-factor = \frac{1}{.040}$
We find:
$R-factor = 25 \frac{^{\circ} F ft^2 h}{Btu}$
Essential University Physics: Volume 1 (4th Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0-134-98855-8
ISBN 13:
978-0-13498-855-9
Chapter 16 - Section 16.4 - Exercises and Problems - Page 309: 28
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