Задача id10672

A pipeline with a diameter of d = 0.75 m ends in a tank filled with oil (p = 860 kg/m3) and is closed with a lid with 12 bolts (Fig. ). The free surface in the tank is located at a distance hd = 7 m from the center of gravity of the lid. Tensile stress of steel bolts [s] = 7000 N/cm2. Determine the force of liquid pressure on the cover, the depth of the center of pressure and the diameter of the bolts, if D = d.

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