3 - Obtain the center of gravity of the surface area of the constant thickness plane plate in the figure in the (x, y) set given. Dimensions a = 13 m, b = 17 m and r = 1 m, the center of the circle is at the point (2a, 1/2 b). Which of the following is the correct coordinates of the center of gravity of the triangle on the plate? A) (36.67; 7.67) B) (43.33; 5.67) C) (43.33; 7.67) D) (40; 7.67) E) (36.67; 5.67)

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Atomic diffusion in solids

In material science, diffusion can take place in solid, liquid, and gases. In solids, atomic diffusion can take place with the help of thermally activated and randomly vibrating atoms. The atomic diffusion in solids is complex and very slow in comparison to atomic diffusion in liquids and gases because the interatomic distance between the atoms is smaller in solids as compared to liquids and gases.