Gradebook ORION runu scREEN PRINTER VERSION .DACx NEXT Chapter 18, Problem 086 Y

Question

Gradebook ORION runu scREEN PRINTER VERSION .DACx NEXT Chapter 18, Problem 086 Your answer is partially correct. Try again. A glass window pane is exactly 21 cm by 29 cm at 10 C. By how much has its area increased when it temperature is 37°C, assuming that it can expand freely? Take the coefficient of thermal expansion for the glass to be exactly 9 x 10 6/co. Units 2 the tolerance is +/-89% Click if you would like to show work for this question: Open Show Work Question Attempts: 1 of 6 used SAVE FOR LATER SUSHITANSwER copyright c 2000-2017 by 3ohn wiey Sons, inc. or related companies. Ai rights reserved. gnment/test/agist uni 1007 Inc. All Rights Reserved A Division of 20hn wiley Asons unc Version 4.22.3.4

Explanation / Answer

change in area = Original area*coefficient of thermal expansion*change in temperature

del A = (0.21*0.29) *9*10^-6*(37-10)

= 1.47*10^-5 m^2

the area is increased by 1.47*10^-5 m2

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