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A water tank consists of a cylindrical part of radius r and height h, and a hemispherical top. The tank is to be constructed to hold 500 m3 of fluid when filled. The surface area of the cylindrical part is (2*pi*r*h), and its volume is (pi*r^2*h). The surface area of the hemispherical top is given by (2*pi*r^2) and its volume is given by (2*pi*r^3 / 3). The cost to construct the cylindrical part of the tank is $300.00/m^2 of the surface area and 400 / m^3 for the hemispherical top. Plot the cost versus r for 2<= r <=10m
A rigid open cylinder having an inside diameter of 15 mm contains a column of water 500 mm long at 20 degrees C. If a compressive force of 2 kN is applied to the top of the water column by a frictionless 15 mm piston
Drawdown data from an observation piezometer near a well used for a pumping test with constant pumping rate is plotted on a semilog plot vs. time (the time axis, on the horizontal, is on a log scale).
A trapezoidal channel lined with d50 = 10 cm has a bottom width of b = 1.2 m, side slopes of m = 3, and a longitudinal bottom slope of S0 = 0.008. Determine the normal depth and the Froude number for Q = 1.4 m3/s.
Due to a street crossing a roadway, the elevation of the roadway at station 3 +413.760 must be at 129.388 m. Design the curve?
The price of oil in 2005 was $67 per barrel. "This priceis still lower than price of in 1981" says a government publication. If inflation has average 3.2% per year from 1981 to2005, what was the price per barrel of oil in 1981?
You have a steel alloy with a 1.00 wt% carbon content that is cooled to room temperature. What is the eutectoid cementite content of this sample
A circular hole of diameter 11.42 + and - 0.03 inches is cut out of the plate. Also, using the tolerances given, determine the minimum possible area of the top surface of the metal plate.
Identify the contaminants on site and explain their hazards in relation to the proposed design and its construction. Describe the ‘In-situ’ and Ex-situ’ treatments that could be used and their relative merits
a concrete test cylinder is loaded with p= 100k (445 kn) and resulting shortening of 0.036" (0.0914 mm). determine the unit strain developed in the concrete.
The wind blows horizontally in a direction which is parallel to one of the diagonals of the cross section. Careful measurement shows that, at height y from the ground, the magnitude of the wind velocity is given
Compute and tabulate the bearingsof the sides of a regular pentagon (polygon with five equalangles), given the starting direction of sideAB.
A smooth, vertical wall is 25 feet high and retains a cohesionless soil with a unit weight of 115 pcf and an angle of internal friction of 30 degrees. The top of the soil is level with the top of the wall, and the soil carries a uniformly
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