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On a day that the temperature is 6.0°C, a concrete walk is poured in such a way that the ends of the walk are unable to move. Take Young's modulus for concrete to be 7.00 × 109 N/m² and the compressive strength to be 2.00 x 109 N/m². (The coefficient of linear expansion of concrete is 1.2 × 10-5 (°C-¹).) (a) What is the stress in the cement on a hot day of 49.0°C? N/m² (b) Does the concrete fracture? ○ Yes ○ No

On a day that the temperature is 6.0°C, a concrete walk is poured in such a way that the ends of the walk are unable to move. Take Young's modulus for concrete to be 7.00 × 109 N/m² and the compressive strength to be 2.00 x 109 N/m². (The coefficient of linear expansion of concrete is 1.2 × 10-5 (°C-¹).) (a) What is the stress in the cement on a hot day of 49.0°C? N/m² (b) Does the concrete fracture? ○ Yes ○ No

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On a day that the temperature is 6.0°C, a concrete walk is poured in such a way that the ends of the walk are unable to move. Take Young's modulus for concrete to be 7.00 × 109 N/m² and the compressive strength to be 2.00 x 109 N/m². (The coefficient of linear expansion of concrete is 1.2 × 10-5 (°C-¹).) (a) What is the stress in the cement on a hot day of 49.0°C? N/m² (b) Does the concrete fracture? ○ Yes ○ No
Transcribed Image Text:On a day that the temperature is 6.0°C, a concrete walk is poured in such a way that the ends of the walk are unable to move. Take Young's modulus for concrete to be 7.00 × 109 N/m² and the compressive strength to be 2.00 x 109 N/m². (The coefficient of linear expansion of concrete is 1.2 × 10-5 (°C-¹).) (a) What is the stress in the cement on a hot day of 49.0°C? N/m² (b) Does the concrete fracture? ○ Yes ○ No
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