DHS 13.3 - Option 3. Decisions Ryabushko AP

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• Calculate the mass of the D heterogeneous plate, given the limited lines, if the areal density at each point μ = μ (x, y)

1.3. D: x = 0, y = 0, 2x + 3y = 6, μ = y2 / 2

• Calculate the static moment of a homogeneous plate the D, limited data lines, with respect to said axis, using polar coordinates.

2.3. D: x2 + y2 + 2ay = 0, x - y ≥ 0, Ox

• Calculate the coordinates of the center of mass of a homogeneous body, occupying the area of the V, bounded by said surfaces.

3.3. V: x = 7 (y2 + z2), x = 28

• Calculate the moment of inertia with respect to said homogeneous body axes, occupying the area of the V, the limited data surfaces. body density δ taken equal to 1.

4.3. V: y2 = x2 + z2, y = 2, Oy

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