he cross-sectional area of the bar is 5 cm?. se E = 70 GPa for aluminum, and E= 200 GPa for steel. L. Aluminum Steel Aluminum 80 kN 20 kN 30 kN 70 kN D A e3m 4m 5 m - at is the elongation in segment AB (Aluminum)? * -7.8571 x10^-3 m 6.8571 x10^-3 m -6.8571 x10^-3 m 7.8571 x104-3 m

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Q: Ggg

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Q: a=6πb/q√17 relating the variables a, b and q.

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Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).