3. Concrete sidewalks are always laid in sections, with gaps between each section. For example, the figure shows five identical 5.80-m sections, the outer two of which are against immovable walls. The four identical gaps between the sections are provided so that thermal expansion will not create the thermal stress that could lead to cracks. What is the minimum gap width necessary to account for an increase in temperature of 40 °C? cm Gap

3. Concrete sidewalks are always laid in sections, with gaps between each section. For example, the figure shows five identical 5.80-m sections, the outer two of which are against immovable walls. The four identical gaps between the sections are provided so that thermal expansion will not create the thermal stress that could lead to cracks. What is the minimum gap width necessary to account for an increase in temperature of 40 °C? cm Gap

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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S. At a temperature of 22.20°C the hole in a steel plate has a diameter of 1.030 cm. If a steel rod with a diameter of 1.038 cm has to just slip through this hole, to what temperature should the plate be heated? The coefficient of area expansion of steel is 24 X 10 -6/ °C. Ans: 672
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