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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.
the reactor on the nuclear ship savannah operated at a power of 69 mw.a how much 235u was consumed on a
A square gate, 4 m by 4 m, is located on the 45° face of a dam. The top edge of the gate is 8 m below the water surface. Determine the resultant force of the water on the gate, and the point through which it acts.
Taking the a-phase voltage to be the zero reference for phase, find the rotor speed, the phasor representation of the a-phase current, the input power, the output power, and the efficiency.
A heat pump supplies 40 kW of heat to maintain the inside of a house at 250C in cold winter months when the ambient temperature is 00C. Power required to operate the heat pump cycle is provided by a heat engine cycle which receives 10 kW of heat from..
initially 0.05 kg of air is contained in a piston-cylinder device at 200 degc and 1.6 mpa. the air then expands at
How much would the insurance reimbursement be for a television system damaged by fire if it was purchased 2 years ago for $6,000 and has a life expectancy of 5 years?
Water flows through a 1 [cm] diameter circular pipe at a flow rate of 127 [cm3/s]. Determine the entrance length.
1 what cooling air flow rate would be required to maintain a space at 72 degrees f if it had a sensible cooling load of
Consider a gas-fired boiler in which five coiled thin-walled, copper tubes of 25-mm diameter and 8-m length are submerged in pressurized water at 4.37 bars. The walls of the tubes are polished and may be assumed to be isothermal. Combustion gases ..
an empty parallel plate capacitor is connected between the terminals of a 3.1-v battery and charged up. the capacitor
Determine the moment about point B of each of the three forces acting on the beam. Determine the moment of each of the three forces about point A.
Air is compressed by 10.50-kW compressor form P1 to P2. The air temperature is maintained constant at 26ºC during this process as a result of heat transfer to the surrounding medium at 10ºC. Determine the rate of entropy change of the air.
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