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Zhe develops truss analysis software for civil engineers. He has the opportunity to contract with at most one of two clients who have approached him with development proposals. One contract pays him Si5 000 immediately, and then S22 000 at the end of the project three years from now. The other possibility pays S20 000 now and S5000 at the end of each of the three years. In either case, his expenses will be S10 000 per year. For a ALARR of 10%, which project should Zhe accept? Use an appropriate rate of return method.
1. Why is system integration a particularly critical part of the systems development process? Suggest three sociotechnical issues that may cause difficulties in the system integration process.
a thin aluminum sheet is to be used to form a closed thin-walled section. if the total length of the wall contour is
in a carnot cycle heat is supplied at 350 and rejected at 27 . the working fluid is water which while receiving heat
Over a period of 4 weeks, a work center produced 50, 45, 40, and 55 standard hours of work. What is the demonstrated capacity of the work center?
A stream of humid air containing 1.00 mole % H2O(v) and the balance dry air is to be humidified to a water content of 10.0 mole % H2O. For this purpose, liquid water is fed through a flow meter and evaporated into the air stream. The flow meter readi..
a set of steel reinforcing rods is to be stretched axially in tension to create a tensile stress of 30ksi prior to
A satellite rotates around the globe at 16,000 km/h. To reenter into the atmosphere, the speed is reduced by 1000 km/h by firing a small rocket in the direction opposite that of the satellite's motion. What are the velocity vectors of the satellit..
Lab - Wall-to-Floor Slab Connection. Model the wall-to-floor slab connection in AutoCAD using Architectural units. Plot on ANSI B, landscape at scale of ½"-1'-0".
A simple gear train with spur gears that contains a pinion, an idler, and a gear utilized in order to transmit 10 hp using a train ratio of 4.5:1. The pinion has 14 teeth and the idler has 30 teeth. The input shaft operates at 2000 rpm. The pressure ..
a closed system contains 0.2 kg of air is used to execute a power carnot cycle between temperature limits of 315 k and
Model a cup of coffee as a closed system containing 1 lbm of pure water at constant pressure of 14.7 psia. Using your knowledge of the 2nd Law, prove that it would be impossible for coffee at room temperature of 70 °F to heat up to 120 °F by receivin..
A high-speed elevator is being designed that must be able to travel at a maximum speed of 11.5 fts. You are asked to recommend the lift motor to use. The completely furnished carriage will have a mass of 3500 pounds. The design occupancy limit will b..
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