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A sewer pipe is to be laid at a slope of 1 in 1800 to carry a maximum discharge of 600 liters/s, when the depth of water is 75% of the vertical diameter. Find the diameter of the pipe. Use manning's formula and take n=0.025.
In order to move a wrecked truck, two cables are attached to the truck at A and pulled by winches B and C as shown. Determine the components and magnitudes of the vectors AB and AC
Determine the depth of a French drain (saturated depth) if the width is 3.0 feet, the effective permeability of the aggregate is 2000 ft/day, and the rate of discharge for 100 feet of trench is 1000 feet^3/day.
the turbopump unit in the engine nominally operates at 7000 rpm, and a result of design issue, the actual thrust provided by the engine oscillates harmonically with an amplitude of 10 KN at the same rotational frequency as the turbopump unit.
a= -10 (1/sec^2 ) x where x is the displacement of the mass in meters. If the initial position is -1 m and the initial velocity is +1 m/sec, find: (i) the velocity when x = 0 for the first time and (ii) the maximum and minimum values of x.
A square footing 0.3 m by 0.3 m is placed on the surface of a dense cohesionless sand (unit weight = 18.2 KN/m^3) and subjected to a load test. If the footing fails at a load of 13.8 KN, what is the value of ? (degree) for the sand?
Restrictions in landing slots at Heathrow airport in London allowed the purchase of five landing/takeoff slots, one per weekday (Monday through Friday). The carrier does not intend to offer weekend service.
the two particles A and B start at the origin O and trevel in opposite directions along the circular path at constant speeds va =.7 m/s and vb =1.5 m/s . Determine the time when they collide and the magnitude
A reaction known to release 1.78 kJ of heat takes place in a calorimeter containing 0.100L of solution and the temperature rose by 3.65 degrees C. The calorimeter was then rinsed out and emptied. To the empty calorimeter was placed a small piece of c..
We know that the part has an intial crack of length 0.02 mm, and that the fracture toughness is 55 MPA(m)^1/2If the part is subject to cycle loading of 300 Mpa in tension and compression, calculate (assuming Y1.2, n = 3.4 and C = 2x10^-11 in units ..
The car weights 2450 lb, the mechanical efficiency of the drivetrain is 90%, and the wheel radius is 14 inches. The base engine develops 200 ft-lb of torque, and a modified version of the engine develops 240 ft-lb of torque.
A monorail train starts from rest on a curve of radius 400 m and accelerates at the constant rate a_t. If the maximum total acceleration of the train must not exceed
The grade of the highway, Suppose that a highway rises a distance of 269 feet in a horizontal distance of 2647 feet.
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