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1.For a given two-dimensional (x,y) Free body diagram (FBD) that is in Static Equilibrium, what are the two equations that civil engineers balance and use to solve for the forces?
2.Write out the final version of Hooke's Law which includes Young's Modulus. Draw the idealized Stress-Strain diagram for a material. On the drawing, please label: the yield stress, the plastic deformation, and the yield strain.
An earthen channel will be excavated into sandy soil for which Vmax = 4.0 ft/sec, n = 0.022, and the recommended m = 3. The channel will have a bottom slope of 0.0011 and accommodate a design flow of 303 cfs. Design (size) the channel section.
if a pipeline is horizontal, what is the porportion of the potential energy head at the upstream crossection that is changed to kinetic energy head at the downstream crossesction
If the porosity of a core sample is 26 percent, the pore volume is7.7 cc, what is the length of the core in inchesif the diameter is 1.5 inches?
a suspension bridge cable of span 100 m and central dip 10 m is suspended from the same level at two towers. the bridge
After the cone of depression has achieved equilibrium, the piezometric heads at two observation wells 40 and 95 m from the pumping well are measured as 78.9 and 83.4 above sea level, respectively.
is fabricated of two 300 mm X 25 mm flange plates and a 800 mm X 16 mm web plate. the plates are joined by four fillet welds that run continuously for the length of the girder. each weld has an allowable load in shear of 920 kN/m.
The water table is 7m below the surface of the sand. The saturated unit weight of the sand is 19kN/m3 and that of the clay 20kN/m3; the unit weight of the sand above the water table is 16kN/m3.
A hotel room has a floor area of 10 m by 4 m and is 2.5 high and has a window which is 1.6 m high and 3 m wide. The room contains some furniture and other commodities containing 50 kg polyurethane with 25 MJ/kg and 350 kg wood with 18 MJ/kg.
What is the composition of this last remaining liquid phase?
A wastewater sample was diluted by turbidity free water; 5ml was diluted to 250 ml. Turbidity of the diluted sample was 2.3 NTU, what is the turbidity of the original sample
Determine the maximum force (P) that can safely applied to a steel tee section (20 feet in length) with the point loads at 5 feet from each end. Fixed at one end, pin at the other.
A structural element subjected to cyclic loading is made of fc' = 3000 psi concrete. Compressive stresses are changing between 2200 psi and 1600 psi. The frequency of loading is 8 Hz.
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