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1.The 8 kg vertical uniform bar AB is hinged at C and is attached at A to a spring of constant k = 500 N/m. If end A is given a small displacement and released, determine the amplification factor and the magnitude of steady state response (for deflection at A), when a horizontal force of 20Sin(8t) (N) is applied at B. (L= 250 mm, distance from center of mass to C = 40mm)
2.A recording tape passes over a 20-mm radius drive drum B and under the idler drum C. Knowing that the coefficents of friction between the tape and the drums are us=.40 and uk=0.30 and that drum C is free to rotate, determine the smallest allowable value of P if slipping of the tape on drum B is not to occur.
A circular rc girder for the foundation raft of water tower has dia 10m.the udl load transmittedby 8 coloumn on te girder being 300 kn/m.the width of the beam is 500 mm and the over depth.
The BOD5 of the influent wastewater is 150 mg/L and the first-order reaction rate for the degradation of BOD5 is 0.6/hr at 20°C. If the required effluent BOD5 is 20mg/L
Determine the mass and specific volume of argon gas in a vessel at 150 kPa and 20°C. The vessel is spherical, with radius 5 m.
A W18x130 section is used as a column with one end pinned and the other end is fixed against rotation but free to translate. The length is 12 ft. determine the strength of the A992 steel column.
The peak-hour volumes at two locations were counted and found to be equal. However, the PHFs were .85 at the first location and .60 at the second. Describe the difference between the two locations if t=5 min.
A 25 mm diameter steel cylinder falls under its own weight at a uniform rate of 0.1 m/s inside a tube of slightly larger diameter. Castor oil of viscosity 0.25 N.s/m2 fills the spacing between the tube and the cylinder.
A rear-wheel-drive 3000lb drag race car has a 200-inch wheel base and a center of gravity 20 inches above the pavement and 140 inches behind the front axle. The owners wish to achieve an initial acceleration from rest of 15 ft/s on a level paved s..
The aerodynamic drag of a new sports car is to be predicted at a speed of 50mph at an air temperature of 25 degrees Celcius. Automotive engineers build a one-fifth scale model of the car to test in a wind tunnel.
A confined aquifer has a specific storage of 2.5 * 10^-6 /m . The porosity is .20 and the water compressibility is 5 * 10-10/Pa.For the aquifer skeleton compressibility you just calculated, what would the aquifer specific storage be if porosity were ..
You are assigned the task of using bioremediation to cleanup a hazardous waste site contaminated with Tetrachloroethylene. The site is a shallow surficial sandy aquifer 30 feet deep underlain by a clay unit. The depth to the watertable is 10ft.
Find the magnitude and direction of the force the cable exerts on the pin for the pulleys
Determine the runoff hydrograph that would be generated by a design 3-hr storm that generates excess rainfall at a constant rate of 10 mm/hr. assume baseflow is constant at 1.0 m3/s.
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