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An amount P must be invested now to allow withdrawals of $1,000 per year for the next 15 years and to permit $300 to be withdrawn starting at the end of year 6 and continuing over the remainder of the 15-year period as the $300 increases by 6% per year thereafter. That is, withdrawal at EOY seven will be $318, $337.08 at EOY eight, and so forth for the remaining years. The interest rate is 12% per year. Hint: Draw a cash-flow diagram.
Consider a cascade system that uses Carnot refrigeration for the high temperature cycle, and vapor compression refrigeration for the low temperature cycle. Saturated vapor ammonia enters the compressor in the low temperature cycle at 20 psi and exits..
a 5 ft3 tank containing steam at 14.7 psia 1 quality is fitted with a relief valve. determine the heat transfer to the
concrete has a density of 2400 kgm3 and a compressive strength of 30 mpa. what is the maximum height if a column if
0.5 kg of water initially at 300 kpa 200oc is compressed in a piston-cylinder assembly to 1500 kpa 210oc. if heat
a 1-m3 rigid tank has propane at 100 kpa 300 k and connected by a valve to another tank of 0.5 m3 with propane at 250
Diffusion in liquids commonly assumed a rigid sphere in a continuum. When would this model be most accurate?.When could it fail? Diffusion varies with viscosity to the (+1) power in gases but to the (-1) power in liquids. Why?
Describe the three parts (Sensor/transducer, signal conditioning, output stage) of the following measurement systems: Measuring cup used in the kitchen. System used to measure the gasoline pumped into a car at the gas station.
the pressure and temperature of the air entering the condenser are 800 kpa and 150degc respectively. the pressure is
Knowing that the pipe has inner and outer dimensions equal to 35 and 42 mm, respectively, detemine the normal and shearing stresses at point a and point b.
a steam generator in a power plant consists of two separate heat exchanger devices a boiler which converts compressed
let us compare these results to our expectations. we expected the horizontal distance to be on the order of 100 m and
a 120 lbm base jumper extreme parachutist leaps from el capitan in yosemite national park 3000 ft vertical drop head
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