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the concrete girder supports the two column loads, if the siol pressure under the girder is assumend to be uniform, determine its intensity w and the placement d of the column at B
The results of his experiment are tabulated below. Assuming the experiment was conducted in a completely-mixed batch reactor, determine the decay rate constant for the die-off of anthrax.
Stormwater controls are typically designed by civil engineers. Stormwater is collected in pipes below the ground and routed to nearby surface water.
a tower is surrounded by a wall that is 10 m high and 30 m away from the base of the tower. compute the length of the shortest ladder that can stand outside the wall and lean against the tower.
For a steel stack that exhaust 1200 m^3/min of gases at 1atm and 400 K, calculate the inner diameter if you are designing for a maximum expected wind speed at the stack of 12m/s.
Assume 0.1 kg of air initially at 200 kPa and 300 K undergoes an isothermal compression process to a volume of 0.02 m3. Find the work done in the process and the final pressure. Sketch the process o
A horizontal angle was measured by repetition six times with a total station. If the initial display reading was 21o33'18" and the final reading was 129o20'04", determine the value of the angle to t
a floating platform is supported at each corner by a hollow sealed cylinder 1 m in diameter, the platform itself weighs 25kN in air and each cylinder weighs 1.2kN per meter of length.
Assuming that the shear stress in the bolts is uniform, determine the number of bolts necessary to make the maximum shear stress in the shaft equal to the shear stress in the bolts. Each bolt has a
A trapezoidal river channel section has a base dimension of 30 feet, a liquid depth of 4 feet, and side slopes of 4 to 1 (horizontal to vertical).
Design a 2:1 rectangular duct and fan system to pull 40000 scfm of air carrying a medium-density dust through an FCD (Final Control Device) with a P of 6.0 in. H2O.
A 600 MW power plant has an efficiency of 36 percent with 15 percent of the waste heat being released to the atmosphere as stack heat and the other 85 percent taken away in the cooling water.
What is the resultant force on one side of a 25cm diameter circular plate standing at the bottom of 3m of pool water
The concrete girder supports the two column loads. If the soil pressure under the girder is assumed to be uniform, determine its intensity w and the placement d of the column at B.
Liquid flows with a free surface around a bend. The liquid is inviscid and incompressible, and the flow is steady and irrotational. The velocity varied with the radius across the flow as V = 1/r m/s
Given an aluminum simply supported beam with overhang, determine the applied load at the free end with a max deflection of 1". b= 1" h= 0.25" L=12" l= 24" E= 10,000 ksi
Two vertical, parallel, clean, glass plates are spaced a distance of 2.3 mm apart. If the plates are placed in water how high will the water rise between the plates (in mm) due to capillary action
A sanitary landfill project needs an import soil for use as an impervious cap over the refuse. The design engineer desires a soil with a high clay content because it will help keep water out of the la
How much extra water does a 21.5 ft, 175-lb concrete can one displace compared to an ultra-lightweight 38-lb Kevlar canoe of the same size carrying the same load
A lake with a surface area of 525 acres was monitered over a period of time. During a 1 month period the inflow was 30 cfs, the outflow was 27 cfs, and a 1.5 in. seepage loss was measured.
Determine the minimum volume of concrete needed to keep the gate(1m wide) in a closed position, with l=2m. Note the hinge at the bottom of the gate
a 2kg piston accelerates to 20m/s from rest. what constant gas pressure is required if the area is 10cm^2, the travel is 10cm and the outside pressure is 100Kpa
a piston moves a 25kg hammerhead vertically down 1m from rest to a velocity of 50m/s in a stamping machine. what is the total change in energy of the hammerhead
A 300 acre parking lot has a runoff coefficient of 0.8 and a time of concentration of 40 minutes. Using the rational method (Q=CIA), what is peak Q if a 4"/hr rain falls for 10 minutes
Brine flood in a 1.9-in-long and 1.5-in-diameter core plug from the North Sea resulted in a stabilized pressure drop of 46.05 psi. The flood was carried out at 0.05 mL/min with brine viscosity of 0.