1  Proof that a solid aluminum block of 4 mm x 3 mm x 3 mm, such as shown in Figure Q1 (a), can float on water at 20 °C due to the effect of surface tension. The density of the aluminum block is 2700 kg/m3 . Determine the contact angle.

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Q: At a temperature of 60°F, a 0.04-in. gap exists between the ends of the two bars shown. Bar (1) is…

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Q: At a temperature of 60°F, a 0.04-in. gap exists between the ends of the two bars shown. Bar (1) is…

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Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.