The area A of a rectangular plate is ab = 1.4 m². Its coefficient of linear expansion is a = 22 × 10°° /C°. After a temperature rise AT = 17°C, side a is longer by Aa and side b is longer by Ab (see the figure). Neglecting the small quantity (AɑAb)/ab, find AA. Aa • Ab Ab Number i ! Units m^2

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Chapter1: Units, Trigonometry. And Vectors
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The area A of a rectangular plate is ab = 1.4 m². Its coefficient of linear expansion is a = 22 x 10°/C°. After a temperature rise AT =
17°C, side a is longer by Aa and side b is longer by Ab (see the figure). Neglecting the small quantity (AaAb)/ab, find AA.
a
Δα
Aa · Ab
Ab
Number
i
Units
m^2
Transcribed Image Text:The area A of a rectangular plate is ab = 1.4 m². Its coefficient of linear expansion is a = 22 x 10°/C°. After a temperature rise AT = 17°C, side a is longer by Aa and side b is longer by Ab (see the figure). Neglecting the small quantity (AaAb)/ab, find AA. a Δα Aa · Ab Ab Number i Units m^2
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