A concrete cube 60 cm on each edge (sp. gr. 2.40) rests on the bottom of a tank in which sea water stands to a depth of 5 m. The bottom edges of the block and sealed off so that no water is admitted under the block. Find the vertical pull required to lift the block.
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A concrete cube 60 cm on each edge (sp. gr. 2.40)
rests on the bottom of a tank in which sea water
stands to a depth of 5 m. The bottom edges of the
block and sealed off so that no water is admitted
under the block. Find the vertical pull required to
lift the block.
Note: The answer should be 13.76 kN or near.
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- 1. A masonry dam 60cm on top and 3 m at the bottom and 7 m high has water 5 m deep acting on its vertical sides. Specific weight of masonry is 23.54 KN/m^3. How far is the vertical resultant force from the toe? 2. A 0.65-meter diameter window has its center five meters below the water surface. Determine the force acting on the window considering the window is submerged vertically.vertical triangular plate with base horizontal and 3.6 m high is submerged in water. The distance between the center of gravity and the center of pressure is 20 cm. If the total force acting on one side of the triangle is 79.46 kN, find the base width of the triangle.A rectangular gate 1.2 m by 3 m is inclined 60º with the horizontal. The top of the gate is submerged at a depth of 2 m, the longer side parallel to the water surface.a. Find the total hydrostatic force in kN.b. Find the location of the total hydrostatic force from the bottom of gate in meters.c. If the gate is hinged at the top, find the force (kN) at the bottom normal to the gate required to open it.
- Dam is concrete gravity dam that impounds water both on the upstream and down stream sides. if the coeffient of friction between the base and the dam is 0.34, determine the following: 1. total vertical reaction in kN 2. total horizontal reaction in kN 3. factor of safety against sliding 4. factor of safety against over turning 5. if the hydrostatic uplift varies linearly from 0 at the heel to zero at the toe, determine the foundation pressure.What is the minimum width for the base of a dam 30m high if upward pressure beneath the dam is assumed uniformly from full hydrostatic head at the heel to zero at the toes? Use the resultant of the reacting force cut the base at the downstream edge of the middle third of the base at O and weight of the concrete is 2.5w.d. Total earth thrust (in kN per meter length of wall) Fa = e. Location of the total earth thrust from the base of wall (in meter) ya = Thank you please help answer it.
- A sector-shaped sluice gate having a radius of curvature of 5.4 m is as shown. The center of curvature C is 0.9m vertically below the lower edge A of the gate about which the gate is constructed to turn. If the water level is 2.4m above the lower edge of the gate (a) Determine the magnitude (in kN) and direction (R or L) of the horizontal component of the force acting on the curved gate AB. (b) Determine the magnitude (in kN) and direction (U or D) of the total vertical component of the force acting on the curved gate. Determine the magnitude of the total force (in kN) acting on the gate. Determine the angle that the total force acting on the gate makes with the horizontal.Determine the shear force V in the beam at the point located 2.50 m to the left of point C. The ground reactions and shear-force diagram are shown. -30.6 kN -48.2 kN -57.2 kN -38.2 kN -40.9 kNWhat is the minimum “B” for the base of a dam 30m high if upward pressure beneath the dam is assumed uniformly from full hydrostatic head at the heel to zero at the toes, and assuming floating logs causing a thrust of 3700 kg/m of dam at the top? For this problem, make the resultant of the reacting force cut the base at the down stream edge of the middle third of the base at O and take the weight of the concrete as 2.5ϒ. SHOW COMPLETE SOLUTION. NEED ASAP. THANK YOU
- A rectangular plate 0f 7 ft by 3.5 ft at an angle 450 with the horizontal, and the 7 ft side is horizontal. Calculate the magnitude of the force on one side of the plate and the depth of its centre of its pressure when the top of edge is (a) at free water surface(b) 1.75 ft below the water surface.If a twisting moment of 10,000 lb in is impressed 1-3/4 in diameter shaft, what is the maximum shearing stress developed?The section of the masonry dam is shown in Figure3a. If the uplift pressure varies uniformly from fullhydrostatic at the heel to full hydrostatic at the toe,but acts only over 2/3 of the area of the base, find(a) the location of the resultant; (b) the factor ofsafety against overturning; and (c) the factor ofsafety against sliding if the coefficient of frictionbetween base and foundation is 0.60. Unit weight of concrete and masonry is 23.54 kN/m3for all the problems NOTE: CLEAR HANDWRITTEN SOLUTION