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what is the chemical composition of steel? and what is the effect of carbon on the mechanical properties of steel?
At a certain location along the span, a reinforce concrete beam section with d=14 in. and b=10 in. is subject to a design shear of Vu=50k. Using No.4 stirrups, compute the required stirrup spacing at the given location. assume F'c=3 ksi and Fy=40 ..
A state legislator wishes to survey residents of her district tosee what proportion of the electorate is aware of her position on using state funds to pay for abortions. a)What sample size is necessary if the 95% Confident Interval
Write the unit of measurement and unit of payment of following items. 1) Earthwork in excavation in foundation. 2) Framwork. 3) Steelwork in trusses. 4) Damp proof course D.P.C. 5) Cement.
Determine the effective size as well as the uniformity coefficient and coefficient of curvature for each soil. Determine also the percentages of gravel, sand, silt, and clay according to (a) ASTM, (b) AASHTO, (c)USCS, and (d) the British Standard.
What is the concentration of tracer in the reactor 1 h after tracer addition is terminated? The reactor had an initial concentration of tracer of 1.0 mg/L when tracer addition commenced.
On a specific westbound section opf highway, studies show that the speed density relationship is u=uf *[1-(k/kj)^3.5]. It is known that the capacity is 4200hehicle/hr and the jam density is 210 veh/mile.
A chemical is added at the beginning of a water treatment plant at a dose of 750 lb/day. The water treatment plant provides water to a community of 200,000 people and the average water consumption in the city is 110 gallons per capita per day (gpc..
A 100 ft cut steel tape was used to measure between two property markers. The rear surveyor held 93 ft, while the head surveyor cut .67ft. What was the distance between the markers
A completely mixed flow reactor, with a volume of V and a flow rate of Q, has a zero-order reaction, dA/dt = k, where A is the material being produced and k is the rate constant.
a temperature probe moves with the velocity 2i+2j-3k through air. the temperature of air changes as T(x,y,z,t)=(2x^2-3y+z^3)cos(at). Find the rate of change of temperature measured by the probe.
Consider a piston/cylinder arrangement that has a linear spring mounted such that as the piston rises to a certain point it will encounter the spring, which will offer a downward component of force as the piston rises further.
How much energy do methanogenic bacteria get from using glucose and hydrogen (H2) to form methane and water as the products. Determine the net reaction (assume methane and water are the only products).
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