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>ろ 4. The magnificent American engineering feat of the HOOVER DAM in Nevada/Arizona was constructed using 3.3 million cubic meters of concrete (at an average annual temperature of 15C) and a lot of steel. Considering just the concrete, if the temperature in the area of the dam varies from a cold temp of 4C and a high of 27°C, what increase in volume will the damm experience (from build size) when the temperature gets to be 27 C? ( the a for concrete is 1.2 x 10rc)

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Coefficient of volumetric expansion of concrete-α-1.2x10 6/Co AT-change in temperature 27C-4C 23C ДУ increase in volume of dam concrete V- initital volume of the concrete at 4° C-3.3e +06m3 substituting all the know values gives we plug the values in hand while u sin g the relation gives AV-91.08m

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