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Principles of Engineering Economic Analysis-Time value of money-use of gradient factor is expected
A small company wishes to set up a fund that can be used for technology purchases over the next 6 years. Their forecast is for $12,000 to needed at the end of the year 1 , decreasing by $2,000 each year therafter. The fund earns 8 % per year. How much money must be deposited to the fund at the end of the year 0 to just deplete the fund after the last withdraw.
Determine the minimum distance from a 50 ft height building from which the ball can be thrown and not hit the side of the building , but it may land on the roof depending upon how long the building is.
Complete the sketch of the obtuse triangle. It must have an area of 1.75 in.2. Prove the geometry by dimensioning the sketch and showing the area calculation. Show only those dimensions needed for the area calculation. Note: each grid unit = .25 i..
determine the force exerted by each cylinder in raising the crate for u = 60°, a 5 0.70 m, and L = 3.20 m. Show that the result obtained is independent of the distance d.
the 50-kg homogeneous smooth sphere rest on the 30 degree incline A and bears against the smooth vertical wall B. calculate the contact forces at A and B.
Calculate the velocity v of the collar as it hits the stop at B if it is elevated from rest at A by the action of the constant 40-N force in the cord. The cord is guided by the small fixed pulleys.
Determine the peak runoff from 500 ft of pavement(32ft wide) that drains toward a gutter(for 10 years freq. storm), the pavement slope is .0005, n=.016 and c=.9
Calculate the concentration of vacancies in Pb at its melting temperature of 327oC. Assume an energy for vacancy formation of 0.55 eV/atom. Lead has an atomic weight of 207.2 g/mol and a density of 11.35 g/cm3.
Evaluate the effect of the water spray on efficiency (net work out divided by heat input) and net power out per kg/s of dry air coming into the turbine.
If the maximum shear stress is limited to one-half of its yield strength and the fillet radius is 0.3 in, what is the maximum torque that can be applied? What power could be transmitted by a similar shaft rotating at 400 rpm?
Carbon fibre reinforced polymers (CFRP have been used extensively in aerospace applications due to their excellent strength to weight and stiffness to weight properties.
Fluid/Dam Pressure, Compare the pressure force exerted on the face of two dams that hold a fresh water of 1000 Kg/m^3 density and a salty water of 1030 Kg/m^3
Cooling/Dehumidification of an air stream, A 1000 m3/minute air stream at atmospheric pressure is at a temperature of 82.2oC and a humidity of 60%. We want to cool the air + water vapor to 8.9oC to condense the water vapor.
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