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Calculate the stress distribution with depth at a point 3 m from the comer (along the longest side) of a rectangularly loaded area 10 by 30 m with a uniform load of 60 kPa. Do by
(a) the Boussinesq theory,
(b) the Westergaard theory, and (c) the 2:1 method.
An activated sludge system treats 1500 m3/day of raw wastewater with a BOD of 250 mg/L. The reactor volume is 375 m3. The kinetic parameters were determined to be: x = 3 day-1, Y = 0.55 kg SS/kg cells, and Ks = 150 mg/L.
The moment of inertia of the footing about its diameter is piB^4/64. What would be the maximum eccentricity such that the entire soil beneath the footing is in compression FOr this value of eccentricity, draw the pressure distribution around the p..
A Particle is traveling on a straight line with velocity v=(3t^2-6t) where t is in sec. if s=4 ft when t=0, determine the position of the particle when t=4s. what is the total distance traveled during time interval t=0 to t=4s
A 3220-lb car enters an S-curve at A with a speed of 60 mi/hr with brakes applied to reduce the speed to 45 mi/hr at a uniform rate in a distance of 300 ft measured along the curve from A to B.
Using a safety factor of two based on the stress, determine the maximum temperature the component must be exposed to for it to sustain the stress for at least 1000 days.
Determine the design compressive strength for a pinned ended HSS 8x8x3/8 column of ASTM A500, grade B steel with an unbraced length of 35ft
A concrete test cylinder 200 mm in diameter by 400 mm high is tested to failure. The compressive strain at failure is 0.0012. Determine the total amount the cylinder shortens before failure.
A concrete mix with a 3in slump, w/c ratio of .5, and sand with a fineness modulus of 2.4 contains 1700lb/yd3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard.
an uncontrolled mosaic is required for an environment project using 1/30000 photos. only the central area of each photo is used for the mosaic- an area about the center measuring 4.5x4.5 inches
Two particles have a mass of 8 Kg and 12 Kg respectively. if they are 800 mm apart, determine the force of gravity acting between them. Compare this result with the weight of each particle.
Higher water level inside the eye, combined with wind results in a "storm surge". Calculate the force on the levee gates form storm surge 20 feet above level of the lake traveling at about 25 ft/sec.
A. List of all possible resistance combinations that can be formed with these springs. indicate drawings and calculation of each unique configuration. B. How many unique combinations can be formed
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