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A flowrate of 3.5 ft^3/s is to be maintained in a horizontal aluminum pipe ( E = 5 * 10 ^-6 ft). The inlet and outlet pressures are 65 psi and 30 psi, respectively, and the pipe length is 500ft. Det
How does the engineering classification of soils differ from he engineering classification of rocks
A sample of undisturbed soil has a dry weight of 10 lb and volumen of 1 ft^3. If the specific gravity of the soil solids is 2.65, determine the void ratio and the porosity.
The Metrodome's inflatable roof covers 10.0 acres and its interior volume is 60.0x103 cubic feet. During construction, 40.0x103cubic yards of concrete, 11.9x103 tons of reinforcing steel, and 5.00x1
What is the capacity of the pump required to supply maximum required discharge to the model, in CFS The length of time the model must be operated to check the equivalent of 36 hours of operation for
A weight W somewhere between 1 to 10 tons is randomly placed along a beam of 10m long span. Let X denote the distance from the point of applicatoin of the load to the nearest support.
Below a discharge from a wasterwater treament plant , an 8.6km stream has a reoxygenation constant of .4 d^-1, a velocity of .15m/s, a dissolved oxygen concentration of 6mg/L, and an ultimate demand
A car is traveling up a 3% grade on a road that has good, wet pavement. The engine is running at 2500 rpm. The radius of the wheels is 15 inches, the driveline slipage is 3% and the overall gear red
For maximum undercooling, calculate the size of the critical radius and the number of atoms in the critical nucleus when solid copper forms by nucleation.
assume the drop has the shape of a hemisphere just before seperating. find an expression for the diameter, D, of the droplet, in terms of the specific weight and surface tension, assuming the contac
Assuming the lagoons are well mixed and that there are no losses or gains of water in the lagoon other than the sewage input, what biodegradation reaction rate coefficient (in day^-1) must be achiev
The sag curve has a 70 mph design speed and G1 = -6% G2=+3%. Determine the minimum necessary clearance height of the overpass and the resultant elevation of the bottom of the overpass over the PVI.
The C-S-H gel can come in a variety of chemical structure forms. If it has a cement notation form of C3 S2 H8, what is the periodic table form of this C-S-H gel. What would be the balanced equation
Determine the height, h, the water level will rise in the tank before remaining constant. Also, if initially the tank is empty, what amount of time will it take for the water level to rise to h? Be
A hoist mechanism is attached to the back of a pickup truck. The crate being moved by the hoist shown below weighs 200 lbs. Note: Point A is directly above point B and the vertical distance between
The L bracket shown below is pinned to the ground at point C and attached to a single cable at points A and D that wraps around a frictionless pulley at point B. Determine the forces acting on the b
a whirlpool is modeled as the combination of a free and a forced vortex. the maximum velocity in the whirlpool is 10 m/s, and the radius at the juncture of the free and the forced vortex is 10m.
The chemical 1,4-dichlorobenzene (1,4-DCB) is sometimes used as a disinfectant in public lavatories. At 20°C (68°F) the vapor pressure is 5.3 × 10-4 atm. (a) What would be the maximum
A water treatment plant treats a continuous flow rate of 50,000 m^3/day and plans to build a 10,000 m^3 tank to house an additional treatment process. What will be the steady-state effluent concentr
If the temperature of the flashlight increases to 120oF, does the spring force increase or decrease and by how much. Take the casing wall to have an outer diameter of 1.5 in., thickness 0.125in.,len
In accordance with BCA, what are the assessment methods and how may they be used to determine that a building solution complies with the performance requirements
what is the magnitude and direction of the force of the water n the nozzle, if the nozzle is held steady/2- what is the FORCE if the fire fighter is running towards the fire, with the hose at a veloci
standard air is drawn from the atmosphere into a 1.25 m diameter cylindrical duct by a fan mounted inside the duct. This air is discharged down stream from the fan through a 0.6 m diameter duct at a
The specimen was 8 cm in diameter and had a length of 85 mm. The area of the standpipe was 0.45 cm^2. Compute the coefficient of permeability of the soil in cm/s, m/s, and ft/d. What was the probabl
Earth whose in situ weight is 110 lb per cf and compacted weight is 124 lb per cf is placed ina a fill at rate of 280 cy per hr, measured as compacted earth. The thickness of the compacted layers is