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1.What is the diameter of a circular concrete column needed to support a load of 300,000 pounds with a factor of safety of 2? Round the diameter up to the whole inch. The concrete ultimate strength is 3000 lb/in^2.
2.A wrought-iron rod 2 inches in diameter sustains a load of 50,000 pounds. what is its tensile stress? if its ultimate strength is 60,000 lbs/in^2 find its factor of safety
3.Show that if an elastic, cylindrical soil is confined in the lateral directions, the costained elastic modulus is E(c) = E'(1-v')/(1+v')(1-2v') where E' = Youngs's modulus and v' is Poisson's ration for drained soil.
a piston-and-cylinder device contains 5 kg of water initially at 150 C and 0.20 MPa. The frictionless piston is then pushed slowly in an isothermal process until the volume of water becomes 10% of its initial value.
what is the rate of evapouration of water from a reservoir with air temp at 20c and the surface of reservoir is 3000m2.
given a 22.414 liter volume of air at STP containg: 21.224kPa oxygen, 79.119 kPa nitrrogen, 0.946kPa argon,and 0.036 k carbondioxide. Find the gram molecular weight of the air.
Prepare a capstone report for designing of steel building using AISC 14 edition manual.
The dynamic viscosity of water at 20°C is 1.00 x 10-3 N-s/m2, and the viscosity at 40°C is 6.53 x 10-4 N-s/m2. Estimate the viscosity at 30°C.
while groundwater andinfiltration losses over the period were estimated to be 0.6 inches. Determine the combined amounts of water evaporated and transpired from the region during the year of record.
In my english class i have to write a propasl, and i choose to write a proposal on the libray doors at my school. the doors are very difficult to open even for young people like my self. who should i contact
The US EPA has published the following data for the release to the Florida environment of sulfuric acid (H2SO4 ), the most widely used industrial chemical (in millions of pounds).
A polystyrene rod consisting of two cylindrical portions AB and BC is restrained at both ends and supports two 6 kip loads. Knowing that E = 0.45 * 10^6 psi,
A trapezoidal river channel section has a base dimension of 30 feet, a liquid depth of 4 feet, and side slopes of 4 to 1 (horizontal to vertical).
You have a steel alloy with a 1.00 wt% carbon content that is cooled to room temperature. What is the eutectoid cementite content of this sample
The 1500kg car has a velocity of 30 km/h up the 10 percent grade when the driver applies more power for 8 s to bring the car up to speed of 60 km/h.
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