A uniform rectangular plate of length l and width w has
Chapter 14, Problem 18P(choose chapter or problem)
(II) A uniform rectangular plate of length l and width w has coefficient of linear expansion \(\alpha\). Show that, if we neglect very small quantities, the change in area of the plate due to a temperature change \(\Delta T \text { is } \Delta A=2 \alpha l w \Delta T\). See Fig. 13–30.
Equation Transcription:
Text Transcription:
\alpha
\Delta T is \Delta A=2 \alpha l w \Delta T
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