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Write a computer program that for a given state of plane stress and a given yield strength of a ductile material, can be used to determine whether the material will yield. The program should use both the maximum shearing-strength criterion and the maximum-distortion-energy criterion. It should also print the values of the principal stresses and, if the material does not yield, calculate the factor of safety.
An object is held in the air 30m above ground and released. Assume the drag force due to air resistance is given by Fd = 1.0Vy. What is the mass of the object necessary so that it reaches ground in 3s
The particle has a mass of 0.6 and is confined to move along the smooth horizontal slot due to the rotation of the arm .Determine the force of the rod on the particle and the normal force of the slot on the particle when = 35.
A reservoir discharges into a long trapezoidal channel with a bottom width of 20 feet, 3 to 1 side slopes, a bottom slope 0.001 and a roughness coefficient of 0.025 the reservoir surface is 10 feet above the invert at the channel entrance
determine the rate of discharge through the gate; b) determine the critical depth , yc at the minimum energy, Es,min; c) determine the critical depth, yc at the current flow; d) determine the alternate depth; e) determine the flow regime (sub- or ..
A truck is designed to measure concrete roughness. During a typical test the driver will bring the vehicle to a constant test velocity, v, and then suddenly lock the brakes bringing the vehicle to a complete stop.
When water at 70C flows through a convergingsection of pipe, the pipe pressure decreases in the direction of flow. Estimate the minimum absolute pressure that can develop without causing cavitation.
In a typical home electronics device such as a stereo, TV, DVD, and/or CD player, there are many signals and transformations applied to those signals before they are presented to the user.
a piston/cylinder contains liquid water at 2 degrees Celcius, with a freely moving piston maintains a pressure of 200 kPa on the water. Heat transfers to the liquid water until the piston/cylinder contains only saturated vapor.
The soil's angle of repose is 35° and its swell is 25%. Find the height and the width of the triangular soil bank that will result from the trench excavation
Hydrogen sulfide (H2S) is an odorous gas that can be stripped from solution by gas stripping. The efficiency of the process will strongly depend on the pH of the solution. The equilibrium reaction is: in a pocess similar to ammonia.
A falling-head permeability test was carried out on a clay soil of diameter 100 mm and length 150 mm. In 4 minutes the head in the standpipe of diameter 5mm dropped from 680 to 350 mm. Calculate the hydraulic conductivity of this clay.
How much money will dave accumulate in his savings account at the end of 5 years if he makes monthly deposits of $50 begining one month from now. The annual nominal interest rate is 9%
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