DHS 13.3 - Option 22. Decisions Ryabushko AP

DHS 13.3 - Option 22. Decisions Ryabushko AP

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

1.22. D: x = 0, y = 0, x + y = 1, μ = x2 + y2

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

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

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

3.22. V: y = 3√x2 + z2, x2 + z2 = 16, y = 0

4. 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.

4.22. V: x = 1 - y2 - z2, x = 0, Ox

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