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1.A sample of soil is compacted into a 9.44 X 10-4 m3 laboratory mold. The mass of the compacted soil is 1.91 kg, and its moisture content is 14.5%. Using a specific gravity of solids of 2.66, compute the degree of saturation, density (kg/m3), unit weight (kN/m3), unit weight (kN/m3) and dry unit weight of this compacted soil.
2.A cube of moist soil weighs 330 lb and has a volume of 3.00 ft3. Its moisture content is 27.0% and the specific gravity of solids is 2.72. Compute the void ratio, porosity, degree of saturation, unit weight and dry unit weight of this soil.
a vertical curve is formed when a rural highway passes under a bridge joining a -8 grade to the horizontal grade
A section of highway has a speed-flow relationship of the form "q = au^2 + bu" It is known that at capacity (which is 3100 veh/hr) the space mean speed of traffic is 28mi/hr.
A metal block, placed on a rough surface, is attached to a spring and is given an initial displacement of 10 cm from its equilibrium position. It is found that the natural time period of motion is 1.0 s and that the amplitude reduces by 0.5 cm in ..
what is the nominal yearly interest rate on a loan with quarterly interest of 3% with quarterly compounding
Determine the maximum grade on which passenger car A can travel without its total resistance exceeding that of car B traveling on a straight and level section of road.
A 1 m diameter mass, M is connected to a 2 m wide rectangular gate. The gar is to open when the water level ,h, drops below 2.5 m. Determine the required value for M.
Consider high pressure steam at 400 degrees C and v =0.01567 m^3/kg. Obtain estimates of the pressure using (a) the van der Waals equation (b) the redlich-kwong equation. The actual pressure is 150 bar.
A concrete dam retaining water has a specific weight of concrete of 23.5kn/m3, what is the factor of safety against sliding & overturning and pressure intensity on the base if coefficient of friction is 0.45
A person who retires at age 62 can receive Social Security benefits of $1537 per month, but by waiting for the full retirement age of 66, the person will receive $2057 per month. What rate of return will the person make
The floating platform shown is supported at each corner by a hollow sealed cylinder 1 m in diameter. The platform itself weights 30kN in air, and each cylinder weighs 1.0 kN per meter of length
It is thought that a new process for producing a certain chemical may be cheaper than the currently used process. Each process was run 6 times, and the cost of producing 100-L of the chemical was determined each time.
The pump curve for a given pump is represented by hp,pump=20 (1-(Q/100)^2) where hp,pump is the head provided by the pump in feet and Q is the discharge in gpm.
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