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A regional municipaliy is studying a water supply plan for its tri-city and surrounding area to the end of year 2055. To satisfy the water demand, one suggestion is to construct a pipeline from a major lake some distance away. Construction would start in 2015 and take five years at a cost of $20 million per year. The cost of maintenance and repairs starts after completion of construction and for the first year is $2 million, increasing by 1% per year thereafter. At an interest rate of 6%, what is the present worth of this project?
Assume that all cash flows take place at year-end. Consider the present to be the end of 2010/beginning of 2011. Assume that there is no salvage value at the end of year 2055.
a walk-in cooler using a vapor compression refrigeration cycle is configured as shown below. the cycle uses cfc22 or
Briefly explain the following concepts related to exposure thresholds: time-weighted average, short-term exposure limit, exposure ceiling, and biological exposure indices.(Your response must be at least 200 words in length.)
assume that all of the unit cells of a piece of aluminum with dimensions 4in x 4in x 0.001in are arranged so that a0 is
a 4-in. diameter disk shown weigts 20 lb. the disk is released at rest when theta30 degrees and rolls down the curved
Air is made up of Nitrogen, Oxygen, Carbon dioxide, Argon, water vapor, and some other stuff in really small amounts. List the compressibility factors for Air, Nitrogen, Oxygen, Carbon dioxide, Argon, and water at 300K and 100kPa.
Determine the fractions of steam extracted from the turbine aswell as the thermal efficiency of the cycle?
Draw the shear force diagram for the beam and determine the position and magnitude of the maximum bending moment.
The practical depth limit for a suited diver is about 185 m. What is the gage pressure in sea water at that depth? The specific gravity of sea water is 1.025.
the turbine of a large power plant receives 1.00 x 108 btuh of heat from the boiler at 900degf and rejects 5.50 x 106
a missile with a conical nose cone with a semivertex angle of 16 deg is flying through sea level air at a speed of 817
water vapor enters a turbine at 6 mpa and 400degc and leaves the turbine at 100 kpa with the same specific entropy as
A 50-lb block rests on a rough inclined plane. If the coefficient of friction between the block and the plane is 0.50, calculate the inclination of the plane with the horizontal when motion impends.
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