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Considering a plane flow between two plates, one plate is at rest while the other is moving at speed Vo = 0.75 m/s. The gap between the plates is 5 mm and the fluid is a viscous oil (ρ = 1,050 kg/m3, µ = 0.011 Pa.s). Calculate the shear stress on the plate at rest and the flow rate per unit width between the plates.
Using estimates of rainfall, evaporation, and water consumption, the town engineer developed the following model of the water volume in the reservoir as a function of time
A 30-L electrical radiator containing heating oil is placed in a 50-m3 room. Both the room and the oil in the radiator are initially at 10°C. The radiator with a rating of 1.8 kW is now turned on.
aturated water vapor at 150 deg C is compressed in a reversible steady-flow device to 1000 kPa while its specific volume remains constant. Determine the specfic work required in kJ/kg. The heat transfer is not negligible.
Calculate the number-average molecular weight of a random nitrile rubber [poly(acrylonitrile- butadiene) copolymer] in which the fraction of butadiene repeat unit is 0.30
A temperature control process has a first-order response with a step response time of 12 seconds. In selecting a temperature sensor for tyhe control system for the process, for what maximum value of sensor time-constant would you be looking?
Determine the magnitude of which will cause the reaction at the bearing to be equal to zero. The bearings are in proper alignment and exert only force reactions on the rod. Set = 600 .
Determine the minimum horizontal force necessary for 200 lb man to scale crevice (using his feet and back). The coefficient of static friction between his shoes and his back against the wall is 0.4.
Each of the three partners realizes that in order for the firm to continue at the present rate of growth a realistic business continuation plan must be in place which would include a viable buy-sell agreement between the shareholders.
If bod5 and ultimate bod of a municipal wastewater are 200mg/l and 457 mg/l respectively what is the reaction rate constant? a) .265 b) .050 c) .115 d) .165
For the following scenarios tell whether you think a refraction survey or a reflection survey would give better results and explain why. Also state how you think the geophone strands and seismic source should be set up (examples: refraction survey wi..
A feed containing 15% by weight of solids is to be concentrated to 40 % solids using a double effect backward feed evaporator. The first effect is heated by steam at 413 K.
a cm reactor receives influent containing 10.0 mgl of tracer for 2 h. then tracer addition is terminated but the flow
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