PROBLEM 7: Locate the center of mass of the block in millimeters. Materials 1, 2 and 3 have  densities of 2700 kg/m3, 5700 kg/m3, 7800 kg/m3respectively.  Note: DRAW OR ILLUSTRATE THE SUB-VOLUMES AND INDICATE THE CENTROID OF EACH  SUB-VOLUME BEFORE ANY NUMERICAL SOLUTIONS.

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A:

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Q: into the parallelogram shape as shown in the figure. All edges remain the same length a, as the…

A: solution of above problem is below:

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Q: E Determine the young modulus when the modulus of rigidity of a material is 80 GPa and Poisson's…

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A: Given:

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Alloys

An alloy is an admixture of two or more metals or a metal and a non-metal. Since ancient times, man has been using alloys. Alloying helps to retain the properties of the parent matter, such as hardness, strength, toughness, ductility and is corrosion-resistant. Copper alloys such as brass have antimicrobial properties that help to fight against (Coronavirus disease 2019) COVID-19 and other hospital-acquired infections. Some common alloys are brass, bronze, solder steel, etc. Most alloys have a lower melting point than their constituents. This is due to the presence of a nonmetal as one of the constituents that behaves as an impurity and restricts the raise of melting point.