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1.A fine sand has an in-place unit weight of 18.85 kN/m^3 and a water content of 5.2%. The specific gravity of solids is 2.66. Void ratios at densest and loosest conditions are 0.38 and 0.92, respectively. Find the relative density.
2.how do you classify a structure as Determinant, indeterminate (and degree of indeterminacy), or unstable? how do hinges play a part in the degree of indeterminacy?
3.If the design speed of a multilane highway is 60 mph, what is the minimum sight distance that should be provided on the road if (a) the road is horizontal and (b) the road has a maximum grade of 5%? Assume the perception/reaction time is 2.5 seconds. Any help here?
You may pay $15,000 for an annuity that pays $2500 per year for the next 10 years . You want a real rate of return of 5% , and you estimated inflation will average 6% per year.
If the defect rate for the flash drivers is 0.5% and you randomly select four of them for inspection: a) What is the probability that none of them has a defect b) What is the probability that all four have a defect
During a particular 30-day period, the streamflow flowing into a reservoir averaged 5.0 m3/s. Water supply withdrawals from the reservoir averaged 136 mgd. The only other outflow from the reservoir was 9.4 cm of evaporation from the water surface.
An element in plane stress is subjected to stresses sigma x=27 MPA,sigma y=14 MPA,sigma xy=6MPA.Using mohr's circle,determine the stresses acting on an element oriented at an angle 40 degrees from the x axis.
If a tank contains 1000 kg of the dilute acid and the concentrated acid is added at a rate of 100 kg/min, how long will it take to bring dilute acid strength to 75 wt% H2PO4? What will be the final chemical composition and weight of the final mixture..
A new section of richmod highway is being designed as a six-lane facility (three in each direction) with a two-way, left-turn lane. Determine the peak hour LOS. Assumed base free flow speed = 55mi/h
How does aggregate size influence the coefficient of permeability of concrete? List other factors that determine the permeability of concrete in a structure.
At 25 C, approximately what pressure in MPa must be applied to water to reduce its volume by 2%
What are the basic assumptions of the 'traffic flow model' and 'capacity model' used in signal timing design. Discuss.
The current price of a company stock is $20.The company is a takeover target.If the takeover is successful.the company's stock price will increase to $30.If the takeover is unsuccessful.the stock price will drop to $12.
Design a series of closely spaced parallel box beams that will support an asphalt road surface over a 10 foot wide, 40 foot long span. The hollow box beams are made of concurred and imbedded No. 8 steel rods (1 inch dia.).
acetic acid is a weak acid. Its Ka is 1.8(10^-5). For a concentration of 0.015 M, calculate the pH.
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