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Earth is required to be excavated from borrow pits for building an embankment. The wet unit weight of undisturbed soil is 1 8 kN/m3 and its water content is 8%. In order to build a 4 m high embankment with top width 2 m and side slopes 1:1, estimate the quantity of earth required to be excavated per meter length of embankment. The dry unit weight required in the embankment is 15 kN/m3 with a moisture content of 10%. Assume the specific gravity of solids as 2.67. Also determine the void ratios and the degree of saturation of the soil in both the undisturbed and remolded states.
a classroom is occupied by 55 students and one instructor each generating heat at a rate of 100 w. lighting is provided
a 100 pound ball is suspended from a wall by a rope that is pulled asided by a horizontal rope B and held so that rope A makes a angle of 30 degrees with the vertical wall. Find the tension in ropes A and B?
Calculate the concentration (in weight percent) of molybdenum that must be added to tungsten to yield an alloy that contains 1.51 x 1022 Mo atoms per cubic centimeter.
advanced stress analysisin all but a very few vehicles today crush or crumple zones are employed as a method to reduce
on a cloudless day the sunlight that reaches the surface of the earth has an intensity of about 1.2 103 wm2. what is
a 15-mm od copper tube conveys hot hydraulic oil. in order to dissipate the heat and cool the oil someone suggests that
find the natural frequency of a pendulum for small angle deflections when the mass of the rod/string is not negligible. (Mass of rod = m, mass of ball = M.
A small droplet of liquid detergent, falling through air in a spray drying tower, has its diameter reduced as water evaporates from the surface. If we assume that the temperature of the liquid within the drop remains at 290 K and the dry air is at..
Determine (a) the resultant couple acting on the plate if a = 8 in., (b) the value of a so that the resultant couple acting on the plate is 480 lb•in. clockwise.
Find the minimum power of the pump
What tightening torque should be used if the connection is permanent and the fasteners are lubricated? What portion of the external load is taken by the bolts? By the members?
2 kg of helium gas is initially contained in a rigid tank at 100 kpa and 27 c. the paddle wheel is now turned be an
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