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(a) draw the free-body diagrams for the entire assembly (or structure) and each of its parts. Neglect friction and the weights of the members unless specified otherwise. Be sure to indicate all relevant dimensions. For each problem,
(b) determine the total number of unknown forces and the total number of independent equilibrium equations.
A piezometer in a water-table aquifer is screened just above a leaky confining layer and a piezometer in a semi-confined aquifer is screened just below the leaking confining layer. The water level in the water-table aquifer is 1.42 m below the ground..
Using a graphical approach, determine the optimal amount of Space Rays and Zappers that need to be produced in order to maximize profits every week. Describe the type of solution you obtained and clearly state your choice of decision variables, objec..
Given a one independent variable linear equation that states cost in $K , and given the following information, calculate the coefficient of variation and determine it's meaning. n=8 E(Y-Y^) =6874 Y=314.375 If we used this equation,
For arectangular section (b(width) x h(thickness) that is subjected to aforce P that is applied at an eccentricity (e) measured from thecenter of area of the rectangle in the h(thickness)direction
Find the present worth of a series of investments that starts at $1000 in year 1 and increases by 12% per year for 20 years. Assume the interest rate is 12% per year.
A streamlined, high-speed train travels at 200 km/hr. The flow over the train is similar to flow over a flat plate. Estimate the boundary layer thickness at the end of the train, which is 125 m long. The temperature is 10°C.
Two new rides are being compared by a local amusement park in terms of their annual operating costs. The two rides are assumed to be able to generate the same level of revenue (and thus the focus on costs). The Tummy Tugger has fixed costs of $10,000..
Design a spherical tank, with a wall thickness of 2 cm that will ensure that no more than 50 kg of hydrogen will be lost per year. The tank, which will operate at 500°C, can be made of nickel, aluminum, copper, or iron. The diffusion coefficient o..
A variety of procurement strategies are available to the construction clients under different circumstances. The common strategies adopted by international clients include deisgn-bid-build (DBB), design-and-build (D&B), management contracting (MC), c..
A gunite concrete trapezoidal channel (n = 0.019) with 1:2 side slopes, as ilustrated below, conveys 60 m3/s on a slope of 0.0005. Compute the depth of flow.
The thickness of each layer is determined by the "last" ID number. Four student numbers are used as the example - Circular and non-circular slip surfaces should be considered
An equal-tangent sag curve has its PVI at station 10+00 and elevation at 138 ft. Directly above the PVI the bottom of an overpass structure is at elevation 162 ft. The PVC is at station 4+00. If the initial grade is -4.0%
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