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Some very large software projects involve writing millions of lines of code. Explain why the effort estimation models, such as COCOMO, might not work well when applied to very large systems.
Is it ethical for a company to quote a low price for a software contract knowing that the requirements are ambiguous and that they can charge a high price for subsequent changes requested by the customer?
Argon enters a pipe at 100 kPa and 27oC and is compressed (via a compressor. meaning work is being done on the system) in an adiabatic, steady flow process to 200 kPa abd 100oC at the exit. Calculate the work required for this process in KJ/kg.
A 4-cm-diameter horizontal stationary water jet having a velocity of 50 m=s strikes a cone having an included angle at the apex of 60-. The water leaves the cone symmetrically. Determine the force needed to hold the cone if
a 1700 kg car starts from rest at position a and accelerates uniformly up the incline reaching a speed of 100 kmh at
the wall of a cold storage consists of three layers- an outer layer of ordinary bricks 25 cm thick a middle layer of
a water drop of radius r1mm at ambient conditions 27c and 1atm is used to cool a computer chips hot spot. the chip is
a front-wheel-drive car has mass of 680 kg 4 roadwheels of diameter 530 mm wheelbase 2.70 m length 4.22 m and width
a counter shell and tube exchanger is used to heat water with hot exhaust gases.the water c4180 jkg cflows at a rate 2
A 1/10th scale model of an airplane is to be tested in a wind tunnel that operates with air at a pressure of 20 atmospheres. The plane is expected to fly at a speed of 500 [km/hr]. What speed should the wind tunnel be run?
A heat engine operates between reservoirs at 1000 and 300 K. Some of the power output from the heat engine drives a refrigerator which operates between 250 and 300 K. The heat-transfer input at 1000 K to the heat engine is 1000 kJ, and the heat trans..
a rigid tank contains 5 kg of refrigerant-134a initially at 20degc and 140 kpa. the refrigerant is now cooled while
long metallic rods of circular cross section are heat treated by passing an electric current through the rods to
during an emergency launch operation to fill a missile with rp-4 a kerosene-based fuel the ullage volume of the fuel
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