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the flow into the lake is from is from a stream is 300 m3/d andthe flow into the lake from runoff averages 20 m3/d. The lake is used for fishing by the local residents but the pesticides from local
when the sleeve and the rod are immersed in a pool of oil with dynamic viscosity of 0.095 kg/m.s, the effective weight of the sleeve is 4.5N. how fast will the sleeve slide down the rod
Knowing that the magnitude of P is 35 N, determine by trigonometry (a) the required angle a if the resultant R of the two forces applied to the support is to be horizontal, (b) the corresponding mag
The cross sectional area of each bar is A = 400 mm2 and L = 250 mm. If the cross bar is loaded with a load P = 250 kN, what are the normal stresses in the bars afterward
A steel circular hollow cylinder is supported on a circular steel plate.This arrangement is supported on a concrete pedestal. The column has outside diameter d = 250 mm and supports a axial load P =
Concrete mix with a 3 in slump, w/c ratio of .5, and sand with a fineness modulus of 2.4 contains 1700 lb of coarse aggregate. compute the required weight of the aggregate per cubic yard.
ACME supplies prepackaged steel framed and sheathed storage buildings in kit form. The standard column used is a steel hollow round tube with a wall thickness of 0.4 inches fixed at both ends.
Determine the factor of safety for a 9 foot long hollow steel column 3.5 inches on a side that has a wall thickness of 0.225 inches and is loaded with a 22 kip load.
If the aluminum wing has an I of 745 in^4 and aluminum has an E of 10.1 *10^6 psi, how much would the end of the wing deflect relative to the fuselage of the aircraft compared to the position it has
A wire has a resistance of 1.2×10-2 . What will the wire's resistance be if it is stretched to twice its original length without changing the volume of the wire
Assuming that the velcity of a 185 lb athlete just before landing is 30 ft/s at an angle of 35 degrees with the horizontal and that the athlete comes to a complete stop in .22 seconds after landing,
knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest
If the discharge is 500cfs, what power output may be expected from the turbine. Assume that the turbine efficiency is 90% and that the overall head loss is 1.5V 2/2g, where V is the velocity in the
a w24x192 of a242 steel is to be used as a beam. what are the values of yield stress Fy ultimate tensile stees Fu and modulus of elasticity E for this beam
A concrete sewer pipe 1m in diameter is laid so it has a drop in elevation of 30cm per 300m of length. If sewage (assume the properties are the same as those of water) flows at a depth of 50cm in th
cell pressure kN/m2 100 200 300 ultimate deviator stress kN/m2 137 210 283 ultimate pore pressure kN/m2 28 86 147 determine the effective stress strength parameters
A large concrete channel holds a hydraulic jump in which the subcritical depth of flow is 2.5 m. If 40 percent of the specific energy in the flow is lost through the hydraulic jump, what is the sp
Divide the sodium hydroxidecharge into 10 smaller charges, and add them one at a time, makingsure that each is well mixed and the tank temperature has stoppedincreasing before adding the next charge
A surface water sample has been evaporated until dry in a crucible dish. The dry (tare) weight of the crucible is 44.642gm. The weight of the residue plus the cruciible is 44.6484gm.
A 10 m long built-up beam is to be fabricated from a universal section beam (UB) and two 'C' channel sections (as indicated). The beams are joined by bolts, with the allowable shear load in each bol
A 200 m wide natural stream, whose cross-section can be approximated by a rectangular cross-section, contains a dischargeof 80 cumecs. If the specific energy of the flow is 1.5 timesthe minimum spec
Two shafts are made of the same material and are of equal lengths.one of them is solid and another one is hollow. the ratio of inside and outside diameters for hollow shaft is 0.65.
During the manufacturing process, a circular steel bar of diameter20mm and length of 1.2m is subjected to an axial load P. Themodulus of elasticity of steel is 207 GPa. The steel bar mustacquire an
Matt is building a stand made out of mud bricks ( ultimatecompressive strength approximately 100 psi and density 250lbs/cubit foot) in the shape of a tent (triangular sides, verticalfront and back).
How many hours should it take an articulated wheel loader equipped with a 4 yd bucket to load 3000 cu yd of gravel from a stockpike into rail cars if the average haul distance is 300 ft one way