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A well of 0.1 m radius is part of a well point network to keep an excavation dry (Figure P6.13). The groundwater at the far edge of the excavation must be 0.5 m below the base.
(a) Calculate the radius of influence.
(b) Calculate the maximum drawdown.
(c) Plot the drawdown curve.
(d) For the radius of influence in (a),
(i) calculate the discharge if the well radius increases to 0.2 m, and
(ii) compare it to the discharge for the 0.1-m-radius well.
Rectify the sheet where necessary and then correct the coordinates by Bowditch's method. Hence, determine the coordinates of all the stations. The coordinates of A are E -235.5, N + 1070.0.
Use the Muskingum method to route a flood through a reach a river. The base flow is 100 cfs, and the incoming flood flow increases 50 cfs every 2 hr over a 6 hr period and the subsides at the same rate.
Beam AB has a square cross section of 100 mm by 100 mm. Bar CD has a diameter of 10 mm. If both members are made of A992 steel, determine the vertical displacement of point B due to the loading of 10 kN.
Indoor air quality is an under appreciated health hazardous. The air quality in a building can be modeled as a CSTR. Suppose that the carpet in a new office building releases formaldehyde at a rate of 10 micrograms per hour.
Property taxes,insurance and storage will run 5%.What is the owning cost for the dozer?Use the time value method to calculate the depreciated portion of the ownership cost.
What is the required re resistance rating for the walls around the elevator shafts? For the purposes of this exercise, when referring to Figure 22.7, assume the highest rating requirement where a range of requirements is provided.
a thin walled circular tube and a solid circular bar of the same material are subjected to torsion. the tube and the bar have the same cross-sectional area and the same length.
A business wishes to discharge salt into a river. the concentration of salt from the business is 210 mg/L. the flow of water in the river (upstream) is 0.5 m^3/s. Upstram the concentration of salt in the river 15 mg/L.
Research Paper Using Word 2010 IFSM 201 (Concepts and Applications of Information Technology) Final Research Paper This assignment has two goals: 1) have students increase their understanding of the concept of Protecting Personal Information (PPI) a..
A cylinder with a moveable piston holds .20 lb of hydrogen initially in a volume of 1 cu ft at a tem-perature of 1300 F. Then the volume is expanded to 2.5 cu ft while the gas pressure remains constant.
For a narrow horizontal rectangular beam of width b and depth h (cross section), determine a) what is the vertical shear stress distribution (tau)xy at each point y along the cross section,
The portable floor crane in the automotive shop is lifting a 420 lb engine. For the position compute the magnitude of the force supported by the pin at C and the oil pressure p against the 2.70 in. diameter piston of the hydraulic cylinder unit AB..
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