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1.Consider a 75-ft wide overflow spillway with no piers and a design head of 18 ft. The crest elevation of the spillway is 2400 ft and the streambed elevation just upstream of the spillway is 2350 ft. Neglecting approach velocity head determine the rating curve of the spillway.
2.Construction dewatering plays are very large role in the todays construction arena. Discuss the role water conditions plays in the planning and design of a temporary earth support system.
Write Darcy's equation in 2-D. There are three piezometers in an unconfined sand aquifer as shown below. The head measurements at A = 104.56 ft, B = 104.53 ft, C = 103.42 ft. The rate of recharge here is estimated to be 1.25 ft/yr.
How would you define the coefficient of permeability? Give typical values of the coefficient for: a) fresh cement pastes; b) hardened cement pastes; c) commonly used aggregates;
The uniform load has a mass of 450 and is lifted using a uniform 35- strongback beam and four ropes. Determine the Tension in the ropes Determine the force that must be applied at A.
A solid ball starts to roll up a hill with an initial velocity of 50m/s. The ball has a mass of 20 Kg with a 0.75 m radius. How high did the ball roll before it momentarily stopped
When in use, a fishing rod can be approximated to act as a cantilevered beam. Assume that the force (P) is applied to the end of the beam by a fish while the fisherman rigidly holds the other end of the beam.
The gas flow rate is 1 kg m-2 s-1 of and the water entering is 1.6 kg m-2 s-1. For this system Henry's law holds and ye=1.75x, where ye is the mol fraction of A in the vapour in equilibrium with a mole fraction of x in the liquid.
Two parallel plates are separate at a distance of 2mm by a fluid. If a shearing stress of 150 Pa is developed at the upper plate when it is pulled at a velocity of 1m/s. Determine the viscosity of the fluid.
Determine how many years from now the consumption will reach its design capacity with current usage rates if the community has a declining growth rate.
If the solubility product of magnesium hydroxide is 11.25 answerthe following question. If water at 25-degree C is bufferedsuch that the pH remains fixed at 7, what is the maximum amount ofsoluble Mg2+, in grams, in 1L of water?
Two blocks A and B have a weight of 10 and 5 , respectively. They are resting on the incline for which the coefficients of static friction are = 0.15 and = 0.40. The spring has a stiffness of = 7 and is originally unstretched.
Maximum dry unit weight was found to be 114lb/ft^3 at a water content of 13.5% in labratory tests. Results of a field unit weight test were dry unit weight=111lb/ft^3 and a water content 11%.
Calculate the precentage of carbon hydrogen and oxygen in ethanoic acid.
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