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Charlie has a project for which he had determined a present worth of R56 740. He now has to calculate the IRR for the project, but unfortunately he has lost complete information about the cash flows. He knows only that the project has a five-year sendee life and a first cost of R180 000, that a set of equal cash flows occurred at the end of each year, and that the ALARR used was 10%. What is the IRR for this project?
assume a wind turbine with a hub 50 meters above the ground a rotor diameter of 50 meters and wind conversion efficiecy
a piston-cylinder device contains 0.167 kg of air initially at 2.2 mpa and 344degc. the air is first expanded
A water bed is 2 m on a side and 30 cm deep. Estimate its weight. Find the pressure exerted on the floor when the bed rests in its normal position. Assume that the entire lower surface of the bed makes contact with the floor. Calculate the pressure e..
a thick cylindrical sleeve when shrunk onto a hollow shaft of a different material had its internal diameter extended
Find the maximum shear stress in a 5 1/2 in-diameter circular saw blade if it runs idle at 5000 rev/min. The saw is 14 guage(0.0747 in) steel and is used on a 5/8 in-diameter. The thickness is uniform. What is the maximum radial component of stress?
the rotor of an electric motor has a mass of 25kg and a radius of gyration of 180mm. it is observed that 4.2 min is
Determine the cutoff location for the two center bars. Design the shear reinforcement and check whether code requirements are met for bars terminated in a tension zone. Redesign the stirrups if necessary.
plot schematics of stress vs strain and stress vs. strain rate for i creep deformation ii superplastic deformation and
a solar dish-stirling engine system operates between the temperature of 500c and 30c. compute the ideal stirling
Resolve the problem below with the vertical edges constrained from displacing in x direction, but free to displace vertically. Determine the vertical displacement of the top edge and the stresses required to prevent the vertical edges from displacing..
an air-standard otto cycle has a compression ratio of 7.5. at the beginning of compression p1 85 kpa and t1 305 k.
If an elevator starting from rest accelerates at 10m/s and then decelerates at -1m/s until it reaches the top floor (ignore gravitational acceleration, assume g=0. Plot the corresponding a-t, v-t and s-t graphs.
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