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Continuous review inventory control is being applied to purchase motors for an electric fan manufacturer. Demand is uniformly distributed between 500 and 600 motors per week. Each order costs $250 to prepare, place, and receive. Motors cost $2.75 and the holding cost rate is 1% per week. Management proposes using the EOQ order quantity and setting reorder points to ensure a 97% fill rate. Find the imputed cost of a shortage and the expected number of shortages per year.
water is boiled at 1 atm pressure in a 25-cm-internal- diameter stainless steel pan on an electric range. if it is
The hull of a boat has a volume of 150 m3, and the total mass of the boat when empty is 8560 kg. Determine how much load this boat can carry without sinking (a) in a lake and (b) in seawater with specific gravity of 1.03.
the central cubical area of an office building at sea level has a floor area of 4000 ft2 and is occupied by 30 people
A wheel barrow is used to lift a 200 lb load. The length from the wheel axle to the center of the load is 2 ft. The length from the wheel and axle to the effort is 5 ft. 5. What is the ideal mechanical advantage of the system?
A 10 kW electric heater is used to heat 2 kg of air contained in an insulated rigid tank from 400 kPa and 50 °C to 200 °C. The ambient air temperature and pressure is 20 °C and 100 kPa, respectively.
a 3 ft. diameter cylindrical block with specific weight 50 lbft3 is supported by a spring whose force is given by
the free-moving piston-cylinder device shown contains 5kg of hydrogen initially at a temperature of 400degc. when
a 30-cm-diameter 5-m-long steam pipe passes through a room where the air temperature is 20 c. if the exposed surface of
steam is to be condensed in the condenser of a steam power plant at a temperature of 60degc with cooling water from a
1 initially an insulated rigid tank contains 3.86 kg of water at 265oc and 1 mpa. a heater in the wall of the tank
a closed system contains 2-kg of air undergoes an isothermal process from 600 kpa and 200oc to 80 kpa. determine the
for the fluid power system shown in figure determine the external load f that the hydraulic cylinder can sustain while
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