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A 1.5 meter deep vertical wall trench is to be cut in a soil whose unit weight is 17.36 kN/cubic meters, angle of internal friction is 25 degrees, and cohesion is 20.6 kN/square meters. Determine the factor of safety of this trench by the Culmann Method.
A gas mixture contains 1.5 × 10-5 mole CO and has a total of 1 mole. What is the CO concentration in ppmv
A lake has a steady-state pollution concentration of 50 mg/L and is being fed by a stream with flow rate 50m3/day. The volume of the lake is 1.00 x 10^7 m3, and the decay rate for the pollutant is 0.15/day.
The ¼" thick 6061?T6 aluminum bar is subjected to a tensile force of P = 5 kips. b = 4"; c = 1.5"; d = 2.5"; and the fillet radii are 1". a) Determine the maximum stress in the bar. b) What is the lateral strain in the 1.5" wide section
The car's position is defined by the position vector, where . The image below shows the system projected onto the x-y plane. What are the car's velocity and acceleration vectors at this position
The cart has a velocity of 4 ft/sec to the right. Determine the angular speed N of the wheel so that point A on the top of the rim has a velocity (a) equal to 4 ft/sec to the left, (b) equal to zero, and (c) equal to 8 ft/sec to the right
at the bottom of a loop in the vertical plane an airplane has a horizontal velocity of 315 mi/h and is speeding up at a rate of of 10ft/s^2. The radius of curvature of the loop is 1mi. The plane is being tracked by radar at O.
If the amount of heat transfer in the HE unit is 2460 kJ per kg of steam, what is the magnitude of shaft work obtained from the turbine in kW?
If the 50 kg crate starts from rest and travels a distance of 6m up the plane in 4s, determine the magnitude of force P acting on the crate. The coefficient of Kinetic friction between the crate and the ground is 0.25
What are the proceeds of this sale and if the note was sold at simple discounting conditions instead, at a simple discount rate of 17%, how much would the sellerleceive for the note?
The cable from point A to point B exerts a 900 N force on the top of the television transmission tower that is represented by the vector F. Express F in Cartesian vector form using the coordinate system.
The natural water content of a saturated soil is 41% and its shrinkage limit = 20%. Gs (sp. gravity of solids) = 2.75. Calculate the percentage change in volume based on its volume at its natural water content if the soil is dried to a water conte..
The concentration of CO2 is 400ppm what is the equivalent concentration in ug/m^3 at temperature of 22C & pressure of 103.198 kPa.
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