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A 200lb homogeneous gate of 10ft width and 5ft length is hinged at point A and held in place by 12ft long brace as shown in fig 2.69 as the bottom of the brace is moved to the right the water level remains at the top of the gate. the line of action of the force that the brace exerts on the gate is along the brace.
(a) plot the magnitude of the force exerted on the gate by the brace as a function of the angle of the gate, theta for 0<= theta<= 90
(b) repeat the calculation for the case in which the weight of the gate is negligible. comment on the results as theta->0
A trapezoidal channel has a bed width of 3.5 m and a side slope of 30 degrees from the horizontal. Determine the critical depth and the critical velocity for a flow of 22 cubic meters per second.
Conditions in the sewage pipe are Qs= 0.5 m^3/s, and Cs= 100mg/L. The pollutant is destroyed in the lake with a first-order rate constant of 0.2/d. The flow rate out of the lake is 5.0 m^3/s.
Write a brief (No more than a few paragraphs plus the equations themselves on a) description of the three-dimensional unsteady Navier-Stokes equations as applied to water. The description should include a brief history
The regulatory agency has told the company to maintain a salt level pf no greater then 250 mg/L downstream of the discharge. what should the removal efficiency. (percentage of the salt removed) of a process designed to remove salt from the waste w..
a) calculate the operational compressive strain this copper specimen is subjected to. b) calculate the maximum strain this copper alloy can sustain without becoming plastically deformed.
a) Find the free-flow speed and jam density for this relationship b) Derive equations depicting the relationship between flow and density, and speed and flow. Plot the resulting curves. Show the values of free-flow speed, jam density, and capactiy..
Consider some hypothetical X+ - Y - ion pair for which the equilibrium interionic spacing and bonding energy values are 0.38 nm and - 6.38 eV respectively. If it is known that n in the equation has a value of 10, determine the expressions for attract..
Given that the max shear strength of the the concrete shore is 10 kPa and the engineer requires a F.S. of 2.5, find the required are of concrete for the thrust block.
A pipe contains a fitting with a minor loss coefficient equal to2.5. The pipe length = 300 meters, pipe diameter = 0.1 meters, andfriction factor = 0.018. Determine the equivalent length of pipeand fitting.
The longitude of Albany, New York, is +73 degrees 44' 49" and the longitude of Los Angeles, California, is +118 degrees 10' 44". When the local mean time at Los Angeles is 10h 41m 00s a.m., the local mean time at Albany is
Estimate the hourly production and unit cost of rock excavation by drilling and basting. The rock is limestone having a seismic velocity of 6000 ft/s. Trial blasting indicates that 3" holes drilled in 12 ft.
The estimated uniform dead load for structural steel framing, firproofing, architectural features, floor finish and ceiling tiles equals 24 psf, and for mechanical duct, piping and electrical systems equals 6 psf.
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