Which of the sequences fan converge and Which diverge n +(-1 (1, 2, 3-4) 1-) an = n 2-) an= -n³ 70-402 n (19 20 3,4) t

A beam is subjected to equal bending moments of M₂ = 2800 N.m. The cross-sectional dimensions are b = 150 mm, c = 27 mm, d = 72 mm, and t = 8 mm. Determine: (a) the centroid location (measured with respect to the bottom of the cross-section), the moment of inertia about the z axis, and the controlling section modulus about the z axis. (b) the bending stress at point H. Tensile stress is positive, while compressive stress is negative. (c) the bending stress at point K. Tensile stress is positive, while compressive stress is negative. (d) the maximum bending stress produced in the cross section. Tensile stress is positive, while compressive stress is negative. M₂ M₂ (typ) b H K

Determine the centroid ( ?̅ and ? [this is also y bar] ). If the centroid is at the line of symmetry, then state so.

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