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A tourist bus company is equipping its fleet with a mix of three models - a 16 seat van costing $35,000, 30 seat minibus costing $60,000, and a 50 seat big bus at cost of $140,000. The total budget is $10 million. A total capacity of at least 2000 seats is required. At least half the vehicles must be the big buses. The availability of drivers and the garage space limit the total vehicles to a maximum of 110. If the profit dollars per seat per month values on the big bus, minibus, and the van are $4, $3, and $2, respectively, determine the number of vehicles of each type to be acquired for maximum profit.
steam enters an adiabatic turbine at 3 mpa and 350 celsius and leaves the turbine at 75 kpa with a quality of 89. if
Determine the mass (in kg) and weight (in N) of the air contained in a typical school classroom whose dimensions are 40 ft x 60 ft x 12 ft. Make suitable assumptions for temperature and pressure given that the classroom is at Penn State in University..
Air is compressed from 23 C to 100 kPa to 500 kPa in a gas turbine. The air is heated to 520 C in the regenerator and then to 1200 C before entering the turbine. The isentropic efficiency is 100% for both the compressor and turbine. Please draw and l..
the acceleration of gravity g as a function of elevation z above sea level is given by g 32.17 - 3.32x10-6 z where g
Determine the thickness of the 1.09m inside diameter pilot sphere (assume 4130 steel with ultimate tensile strength of 1,234MPa and a 200% factor of safety). The depth at which the sphere will fall is 10,908 meters.
A rectangular gate is used as a retaining wall for seawater as shown in the figure. The gate is hinge at point O 1 m from the bottom. Determine the depth of seawater required for the resultant force to be located at the hinge. The gate width into the..
two jets of air of equal mass flow rate mix thoroughly before entering a large reservoir. one jet is at 400 k and 100
a particulate control device has an efficiency which is a function of particle size as follows eff dp 11 d50 dp 2
you have a kiln where theinterior is a cube with an edge length of 30 cm. the walls of the kiln are made of an
determine the heat transfer necessary to increase the pressure of 70 percent quality steam from 200 to 700 kpa
during a gust of wind the blades of the windmill are given an angular acceleration of 0.2 rads2 where is measured in
a food department is kept at -15 degrees celsius by a refrigerator in an environment at 25 degrees celsius. the total
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