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A horizontal prestressing force of 500kN is applied to a rectangular beam. The beam has a depth of 450mm and a width of 250mm. The force is applied at a distance of 60mm below the sections x-x axis.(a) calculate the stress along the edge A-B caused by the applied prestressing force(b) calculate the stress along the edge C-D caused by the applied prestressing force(Calculation of bending stresses due to the self-weight of the beam is not required for the question).
Suppose that the distance from the lake outlet to the withdrawal cannot be more than 20 mi. What should be the new volume of the lake?
If I raise a 1000 lbf weight 100 feet above sea level on earth in 10 seconds how much power will be required
Assume you are an observer standing at a point along a three- lane roadway. All vehicles in lane 1 are traveling at 30 mi/ h, all vehicles in lane 2 are traveling at 45 mi/ h, and all vehicles in lane 3 are traveling at 60 mi/ h.
What is the tension in the cable connecting the boat to the pier Angle of spray 50 degrees off horizontal axis and is spraying toward the pier and pushing the boat away from the pier.
How high of a signal source impedance can exist and still provide an output signal from an inverting amplifier circuit. Explain
A tubular aluminium bar (G=28GPa) of square cross section with outer dimensions 50mm x 50mm must resist a torque T=300Nm. Calculate the minimum required wall thickness t_min if allowbale shear stress is 20MPa
Assume to just using coal as an electric energy source. Take efficency as %50 for average power plant.If the carbondioxide level is 400 ppm by volume now, what will be the carbondioxide level 10 years later
A 20 kg package is at rest on an incline when a force P is applied to it. Determine the magnitude of P if 10 seconds is required for the package to travel 5 m up the incline. The static and kinetic coefficients of friction between the package and ..
Design a horizontal curve with a 40-degree central angle (delta=40) for a two-lane road with 11-ft lanes. The design speed is 70 mi/h and superelevation is limited to 0.06ft/ft. Give radius, degree of curvature, and length of curve
assuming that the contaminant travels mainly by advection, propose any operational changes to the given layout to prevent the river from being contaminated.
A rigid 1ft^3 vessel contains R-134a originally at -20F and 27.7% quality. The refrigerant is then heated until its temperature is 100F. Calculate the heat transfer required to do this, in Btu.
If the elevation difference between the water surfaces is y = 25 + x/11 metres, what minimum pipeline diameter will be required to convey the design discharge? Once your design is complete, determine the actual discharge. The value of x equals 23.
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