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A cantilever beam AB has a rectangular cross section and is loaded by a force P at an angle α that acts at the centroid of the cross section. Two strain gages are placed at point C, which is at mid-height of the beam. Gage D measures the strain in the horizontal direction and gage E measure the strain at an angle β. The measured strains are εD = 145 x10-6 and εE = 165 x10-6, respectively. Find the force P and angle α, assuming the material is steel. The self weight of the beam can be neglected. Screen Shot 2015-04-17 at 6.17.59 AM.png
Use the given values of ν = 1/3, β = 60°, b = 20 mm and h = 175 mm.
A tiler is removing broken tiles from the roof of a house, and throws a tile with a velocity of 8 m/s at an angle of 20 degrees above horizontal. At the point of release the tile is 5.2 m above the ground surface.
If a 24' tall W 14 x 120 column has simple end connections, determine the maximum design compression strength of the column.
In a water table aquifer bounded on the ends by rivers, the hydraulic conductivity is 50 m/day. The hydraulic heads at x = 0 and x = 1000 m are 100 m and 90 m, respectively.
Calculate the force (in Kn) a punch press must exert if it is to punch out a large washer from a strip of 5-mm thick sheet steel with an ultimate shear strength of 400 MPa. The washer dimensions are as follows: hole diameter is 27 mm. outside diam..
Calculate the surface area required for a stabilization pond to serve a domestic population of 1000. Assume 80 gpcd at 210 mg/l of BOD. Use a design loading of 20 lb of BOD/acre/day.
Sacramento Cab Company owns several taxis that were purchased for $25,000 each 4 years ago. The cabs' current market value is $12,000 each, and if they are kept for another 6 years they can be sold for $2000 per cab
A 57.0 kg skier is being pulled up a 13.0° slope by a steelcable. The cable has a cross-sectional area of 7.18 10-5 m2. The cable applies a force tothe skier
Where Ce (mg/L) is the equilibrium concentration of the species in water and qe(mg/g) is the mass of sorbed carbofuran per mass of activated carbon. The carbofuran concentration in untreated water is 0.9 mg/L. The drinking water standard is 0.04 mg/L..
A 2 kg block is projected up a frictionless plane with and initial speed of 8 m/s. The plane is inclined upward at 30°. If the block travels 5 m before striking a linear spring, what should the spring stiffness be if the spring compression is to be l..
Calculate the change in length of a 30m measuring tape made of steel when its temperature changes by 84 F. The coefficient of thermal expansion for steel is x = 3.1 x 10^-6 per C
The foundation soil for an earth dam has a horizontal hydraulic conductivity of 1.5 x 10-9 m/s and a vertical hydraulic conductivity of 1 x 10-10 m/s. It is proposed to estimate the seepage flow rate through the foundation soil using the flow net ske..
A rubber ball is inflated to a pressure of 65kpa. At that pressure, the diameter of the ball is 240 mm and the wall thickness is 1.25 mm.The rubber has a modulus of elasticity E of 3.6 MPa and a poisson's ratio of 0.48.
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