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From a photograph one observs that on a level section of highway 20% of the vehicles are trucks, 80% are cars, and that there are 50 vehicles per mile of highway. The trucks travel at 40 mph, the ca
The three hinged arch is composed of segments of a circle. Support points A and D are not at the same level.Determine: (a) the horizontal and vertical components of reaction at A and D.
hydraulic conductivity of soil is .009cm/sec at room tmeperature of 28*C. what would be the coefficient of permeability at 20*C
The three hinged arch is composed of segments of a circle. Support points A and D are not at the same level. Determine (a) the horizontal and vertical components of reaction at A and D. (b) the shea
We know that the part has an intial crack of length 0.02 mm, and that the fracture toughness is 55 MPA(m)^1/2If the part is subject to cycle loading of 300 Mpa in tension and compression, calculate
material for an earth fill was available from a borrow sites at a cost $ 6 .4 per cubic meter and a void ratio of 0.8. in the compacted state the fill measured 100,000 m^3 at a void ratio of 0.7.
A water jet of diameter 2 inches and speed of v=60 ft/s is filling a tank at a 70 degree angle. The tank has a mass of 25 lbm and contains 6 gallons of water. The water temperature is 70 degrees F.
determine the force in members GF,FB, and BC of the Fink truss and state if the members are in tension or compression
A C10x20 catilever beam is 12 feet long, supported on the right side. The beam supports two point loads: Load 1 is 2500 lbf and is located 2.5 feet from the wall. Load 2 is 1300 lbf and is located 1
A 13 foot long C10x25 beam is supported as a cantilever beam where x=0 on the left end. It is subject to no externally applied loads. a) What is the delfection due to self weight at the end of the be
to apply shock loading to an artillery shell, a 20kg pendulum A is released from a know height and strikes impactor B at a known velocity v (theta). impactor B then strikes the 1 kg artillery shell
The subway train shown is traveling at a speed of 30 mi/hr in the west direction when the brakes are fully applied on the wheels of cars B and C, causing them to slide on the track, but are not appl
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