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1.Consider a rectangular wastewater treatment cell having a length of 100ft, width of 20ft and depth of 20ft. If the flow into the cell is 50ft^3/min, calculate the residence time of the treatment cell.
2.When the Mars Exploration Rover was fully assembled, its mass was 180 kg. The acceleration due to gravity at the surface of Mars is 3.68 m/s2. a) What was the rover’s weight when it was at sea level on Earth? b) What is the rover’s weight on the surface of Mars?
3.Determine the range from the SV to the REC in GPS; using codes C/A and P and also waves (L1 and L2). How does two of the below from the list have an effect on the codes and waves? 1. Determination of time 2.atmospheric errors 3.correlation of signal at REC 4.what is actually measured at the REC 5.AODC effects on the GPS signal 6.Accuracy
he City of Leeds (England) discharges about 1.4 m3/sec to the Aire River. Without the wastewater discharge, the river flow rate would be 12.7 m3/sec. Given that BOD(river) = 3.0 mg/L and BOD(wastewater) = 30.0 mg/L
A pipeline 1200 ft long and 8 in. in diameter has at its inlet point 75ft of available hydraulic energy with respect to the reference level. The velocity in the pipe is 5 fps: the pressure at its end is 12psi.
Using the method of lee et al. predict the temperature required in an isothermal plug flow incinerator to reduce the xylene level in a waste gas from 1000 ppm to 10ppm. Assume a residence time of 0.7 sec.
Shaquille O Neal, who is listed as 7`1" tall is out of the NBA Playoffs and so has time to visit is pool. If he stands vertically in the water, completely submerged, determine the difference between the pressure is acting at his head and at his toes,..
A 100 mm diameter log is subjected to two equal loads equally spaced along its 450 mm length at 150mm intervals. The beam has an allowable flexural stress of 9 MPa and a much lower allowable shear stress parallel to the grain of 850 kPa
What is the Hydraulic Radius of a rectangular channel that has a bottom width of 5 feet and a flow depth is 3.5 feet. Assume the bed slope is 1.5%, and the Manning's roughness coefficient is 0.013.
The temperature = 25°C; assume that u = 10^-2 after the addition. Compare the value obtained when ionic strength effects are taken into account with that calculated when it is neglected.
Determine the mean effective pressure of an ideal Otto cycle that uses air as the working fluid. At the beginning of compression the pressure is 14 psi and the temperature if 60°F.
It is known that the velocity distribution for steady, laminar flowin circular tubes (either horizontal od vertical) isparabolic. Consider a 10 -mm- diameter horizontal tubethrough with ethyl alcohol is flowing with a steady mean velocity.15 m/s.
Suppose that in a senior college class of 500 students it is found that 210 smoke, 258 drink alcoholic beverages, 216 eat between meals, 122 smoke and drink alcoholic beverages, 83 eat between meals and drink alcoholic beverages
A cylinder with a 6.0 in., diameter 12.0 in. height is put under a compresive load of 150 kips. The modulus of elasticity for this specimen is 8000 ksi and Poisson's ratio is 0.35. calculate the final length and the final diameter of this specuman..
The two shafts in a speed-reducer unit are subjected to couples of magnitude M1 = 18 N · m and M2 = 7.5 N · m, respectively.
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