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The force-couple system consists of the force R = 250i + 360j - 400k N and the couple-vector CR = 1200i+750j+560k N·m. Determine the equivalent wrench and find the coordinates of the point where the axis of the wrench crosses the xy-plane.
A large stream flowing through a highly industrialized area must serve as the source of a community's water supply. The turbidity of the water ranges from 30 to 60 NTU, alkalinity exceeds 100 mg/L.
Water flows past a triangular flat plate oriented parallel to the free stream as shown. Integrate the wall shear stress over the plate to determine the friction drag on one side of the plate. Assume laminar boundary layer flow.
Estimate the hydraulic conductivity of a similar soil with a porosity of 35% from the results of this test.
Estimate the maximum centric load that a 2-m-square footing can support using CSM. The minimum factor of safety is 1.25 and the settlement should not exceed 25 mm. Assume v' = 0.35.
A cylindrical specimen of soil is compressed by an axial principal stress of 500 kPa and a radial principal stress of 200 kPa. Plot Mohr's circle of stress and determine (a) the maximum shear stress and
The kill of pathogens by disinfection in water treatment can be described by a first order reaction. Complete a reactor comparison for a batch reactor, CSTR and PFR for disinfection. The treatment plant produces 100 L/s of water.
What is the exact height of a brick wall that is 44 courses high when three courses of brick plus their three mortar joints are 8 inches (203.2 mm) high?
a ball is thrown with a valocity of 30 m/s at an angle of 40 degrees above the horizontal from the top of a 100m tall building. what is balls velocity when it lands. (neglect air resistance in both cases) DO NOT USE 2D projectile motions, only work ..
The discharge through a 6.0 ft wide rectangular channel is 200.0 ft^3/s. Find the conjugate depths of the jump formed in such a channel if 3.5 ft of energy head is lost through it.
A glider at 1200 m altitude has a mass of 220 kg and a wing area of 22 m2 . The glide angle is 1.7 degrees, and air density is 1.2 kg/m^3. If the lift coeficient of the glider is 0.83, how many minutes will it take to reach sea level on a calm day?
What size of orifice is needed to produce a change in head of 9m for a discharge of 2 m^3/s of water in a 1-m diameter pipe.
Assume the mold hammer mass, number of layers (3), and number of blows (25) are all constants.
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