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During construction of a highway project, a soil sample was taken from compacted earth for a sand-cone in place denstiy test. The following data were obtained from the test. Weight of sand used to fill test hole and funnel of sand-cone device= 845 g. Weight of sand to fill funnel = 323 g. Unit weight of sand = 100lb/ft^3. Weight of wet soil from test hole= 648 g. Moisture content of soil from test hole = 16%. Calculate the dry unit weight of the compacted earth fill.
The flow is assumed to be laminar and the film thickness, H, constant. Using a coordinate system located on the plate at the surface of the pool, complete the following: a. Dram and sketch the system. Include coordinate system in your sketch.
When P = 800 lb, A) Draw the shear and bending moment diagram along its length; B) Determine the maximum tensile and compressive bending stresses; and C) determine the maximum shear stress.
Water in the amount of 1 lb is contained in a rigid closed tank. Initially the water has a quality of 0.4 at a pressure of 10 lbf/in2. Through a stirrer, work is provided to the water in the tank until the pressure quadruples.
A precast concrete wall section is temporarily held by two cables as shown. Knowing the tension in cable BD is 900 N, determine the moment about point O of the force dxerted by the cable at B. Next determine the perpendicular distance from O to cable..
how to design a simply supported rectangular concrete beam having cross section of 20 mm by 40 mm and a length of 3 meters that couldcarry a uniform load of 1000 KN
The motion is described by the second Newton's law: m(d^2y/dt^2) + a(dy/dt) + ky = 0 where y is the body displacement in m, t is the time in s, a > 0 is the friction coeffcient in kg/s and k is the spring constant in kg/s2.
What are the different types of stress that a structural element could be subjected to at different cases of loading
The rigid bar of negligible weight is supported as shown. Find the stress in each rod if the temperature rises DeltaT after a load P is applied. Use the following data: area of steal rod 320mm2, bronze rod 1300mm2, thermal expansion coefficient Al..
a) which measurement of the velocity of the ball do you think is the more dependable the projectile method or the pendulum method. why b) which measurement contributes to large amount of error
If it is known that the value of the stress exponent, n, for this alloy is 8, compute the steady-stare creep rate at 1300 K and a stress level of 90 MPa.
Incandescent light bulbs have been phased out in the US because they are very inefficient (i.e., they produce a very large amount of heat). A 10 W light-emitting diode lamp (LED) can produce about the same light output as incandescent light bulbs
Construction dewatering plays are very large role in the todays construction arena. Discuss the role water conditions plays in the planning and design of a temporary earth support system.
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