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We requiere to design combined footing which will support a load of two columns ( the two columns rest on the same footing). The columns are squared, with a width of 12" and are at a distance of 15' from centre to centre. Determine the dimensions of the combined footing so that the pressure of contact is uniform. The load on the beam are P1= 150kips and P2= 200 kips. The permisable pressure on the soil is 3000 psf and the footing has a thickness of 24" and is at a depth of 4'.
A gas stream with a particulate loading of 20.0g/m^3 is passed through a 70%-efficient cyclone followed by a 95%-efficient ESP. Calculate the overall efficiency of the system.
A 20 kg block slides along the rough surface for which the coefficient of kinetic friction is 0.2. The block strikes a nonlinear spring with a speed of v=4.5 m/s. The spring is termed
a cantilevered bean has a lenght of L, a cross section area of A, and a flecural rigidity of EI. The free end is free to rotate and displace due to bending. derive the stiffnes of the cantilevered bean. Assume small deformations.
Assuming you had the necessary inputs to get a numerical value for both c and d, how might your numerical answers for both c and d vary if the polymer tensile member is located in MI versus TX? Why?
a beryllium copper wire having diameter of 1-50 mm and length of 40mm is used as a small torsion bar in an instrument. determine what angle of twist would result in the wire when it is stressed to 250 mpa.
there is a legend that the inventor of chess asked fora small payment in return for the marvelous game he had developed; one grain of rice for the first square on the chess board, two for the second square, four for the third square, and so on.
a spot speed study was conducted on a freeway on which the mean speed and the standard deviation were found to be 72 .4 mi/hr and 5.4 mi/hr, respectively. what is the range of the values that would be expected to contain the middle 95 percent of s..
As a further exercise, try to find values of t for your approximation that keeps the error (i.e., the difference between the approximation and the real function v(t) ) less than 0.1.Hint: to help with this, ask yourself this question: where would mor..
The thickness of geonet is 0.2 inch (5 mm). Assume the maximum inflow rate is 0.14 inch/hour. The liquid head over the geomembrane liner is 2 inches. The index properties of the soil placed over the geotextile are as follows
Need to know how the equation for splitting tensile strength of a concrete cylinder f(ct) = 2P/pi*D*L is derived using mechanics of materials or linear elasticity approach.
The bracket ABC can be supported in the eight different ways shown. All connections consist of smooth pins,rollers, or short links. For each case, answer the questions listed in Prob.4.59,and, whenever possible
Name three types of metamorphic foliations, and draw a small sketch that shows a situation where a metamorphic foliation could cause problems in an excavation.
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