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A rigid steel plate is supported by three posts of high-strength concrete each having an effective cross-sectional area A=40,000 mm^2 and Length L=2 m (see attachment). Before the load P is applied, the middle post is shorter than the others by an amount s=1.0 mm.
Determine the maximum allowable load Pallow if the allowable compressive stress in the concrete is equal to 20 MPa.(Use E=30 GPa for concrete).
A barometer filed with non-toxic glycerin is used to measure standard sea level atmospheric pressure. neglecting the effect vapor pressure and surface tension. calculate the atmospheric pressure head.
(a) determine if the flow will choke and both the downstream and upstream water depths. (b) if there is also a 1 ft high step up in bottom elevation at the contraction, determine if the flow will choke and both the downstream and upstream water de..
A combined pitot static tube has a coefficient of 0.98. Thedifferential head reading is 0.874m of water when it is positionedon the centreline of a pipe of constant diameter.
An energy efficiency project has a first cost of $300,000, A life of 10 years, and no salvage value. Assume that the interest rate is 9%. The most likely value for annual savings is $60,000. The optimistic value for annual savings is $80,000 with a p..
The cash flow associated with landscaping and maintaining a certain monument in Washington, D.C., is $100,000 now and $50,000 every 5 years forever. Determine its perpetual equivalent annual worth (in years 1 through infinity)
A box has a volume of 0.57 cubic meters. It is 5.2 feet in length and 15 inches in width. How many centimeters tall is the box?
A 27ft beam has a uniform load of 6kip/ft. along its entire length. From left to right x=0ft to x=27ft. At x=0 ft it is pinned and at x=18 ft there is a roller. So, the 9 ft end section is cantilevered. What is the maximum bending moment of the beam?
An engineer has to design a rod made with the same steel to carry a load of 150 kips without yielding. He desires to have a factor of safety against yielding of 1.5. What should be the cross-sectional area of the circular rod
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.
a rectangular clarifier with a lengthwidth ratio of 31 receives a flow of 850m3day. the clarifiers depth is 4.0m and
Assume that a chemical reaction involving the removal of a given contaminant follows first order kinetics. The rate constant, k, is 0.5 hr-1. Compare the performance of the following reactors/reactor combinations. Provide your comments your results. ..
The in-situ dry density of a sand is 1.72 Mg/m^3 . The maximum and minimum dry densities, determined by standard laboratory tests, are 1.81 and 1.54 Mg/m^3, respectively. Determine the density index of the sand.
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