Answer to Question #204576 in Molecular Physics | Thermodynamics for Fhulufhedzani

Question

3. Concrete sidewalks are always laid in sections, with gaps between each section. For example, a drawing showing three identical 2.4 m sections, the outer two of which are against immovable walls. The two identical gaps between the sections are provided so that thermal expansion will not create the thermal stress that could lead to cracks. Calculate the minimum gap width necessary to account for an increase in temperature of 32 °C.

Answer 1

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