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During the feasibility study of a project, the initial estimated cost for design and construction is $3.7 million. It is anticipated that the cost to maintain and operate the facility after completion of construction will be $250,000 per year. Assuming the owner must obtain a return on the initial investment of 15%, what net annual income must be received to economically justify the project? Assume no salvage value after using the facility for 12 years.
a gate in the shape of a quarter cylinder hinged at a and sealed at b is 3 m wide. the bottom of the gate is 4.5 m
Find the expected change in the natural frequency of the beam-machine system.
consider a carnot heat-engine cycle executed in a closed system using 0.02kg of refrigerant-134a as the working fluid.
You are designing a remote-area power supply based on a miniature wind turbine that is 20% efficient. Meteorological data indicates an average wind speed of 24 km/h at an air temperature of 10oC and pressure of 0.9 atm. The rotor has a diameter of..
the driver of a car which is initially at rest at the top a of the grade releases the brakesand coasts down the grade
the l12 of a bearing is the life of the bearing at which 15 failures may be expected. a new bearing design follows a
How people are able to extract out oil from their motorcycle using a tube?
Calculate the angles made by F with the positive x, y-, and z-axes.
ammonia enters a control volume operating at steady state at p1 14 bar t1 28 oc with a mass flow rate of 0.5 kgs.
a downward force of 98 n acts on the free end of the illustrated pulley. ma 47 kg what is block as acceleration?
A curde oil storage tank the tank initially contains 1000m^3 ofcrude oil. Oil is pumped into the tank through a pipe at a rate of 2m^3/min and out of the tank at a velocity of 1.5m/s through another pipe having a diameter of 0.15m. the crude oil has ..
a frictionless poston-cylinder device initially contains air at 100 kpa and 0.15m3. at this state a linear spring f
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