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1.Calculate the maximum pressure developed when a 10 in. thick wall 10 ft high is to be poured at the rate of 3ft/hr at a temperature of 70 degrees F.
2.A sulfuric acid solution is added to scale-forming water to convert calcium carbonate to calcium bicarbonate. Writer the chemical equation for the reaction, and calculate the amount of sulfuric acid in milligrams per liter to neutralize 20 mg/l of calciums carbonate.
if water sample contains 40 mg/l of ca++ and 10 mg/l of mg++, what is the hardness expressed in milligrams per liter as CaCO3 .
Deisgn a thrust block needed to resist the force generated by a 45 degree flanged regular elbow which carries a flow of 14 cfs. The diameter of the fitting narrows from 24 inches to 18 inches and the inlet pressure is 100 psi.
in what ways were the projectacirc??s planning and scope management appropriate? when did the planners begin taking
The acceleration of a particle is defined by the relation a=-8m/s^2. Knowing that x=20m when t=4s and that x=4m when v=16m/s, determine (a) the time when the velocity is zero, (b) the velocity and the total distance traveled when t=11s.
an elevator drive sheave of diameter 1 m and negligible mass is mounted on a shaft midwaynbspbetween bearings which are
A 2 kg block is projected up a frictionless plane with and initial speed of 8 m/s. The plane is inclined upward at 30°. If the block travels 5 m before striking a linear spring, what should the spring stiffness be if the spring compression is to be l..
A bank is offering to sell 6-month certificates of deposit for $9800. At the end of 6 months, the bank will pay $10,000 to the certificate owner. Compute the nominal annual interest rate and the effective annual interest rate
The mass of the compacted soil is 1.91 kg, and its moisture content is 14.5%. Using a specific gravity of solids of 2.66, compute the degree of saturation, density (kg/m3), unit weight (kN/m3), unit weight (kN/m3) and dry unit weight of this compa..
Compact fluorescent light (CFL) bulbs have been avaiable for years; they are bery efficient but a little pricey. A CFL bulb that puts out as much light as a 60-W incandescent bulb might costs $10, compared to about $1 for the incandescent bulb. But C..
A single strain gage is cemented to a solid 4-in diameter steel shaft at an angle B = 25 degrees with a line parallel to the axis of the shaft. Knowing that G = 11.6*10^6 psi
what is your recommendation for the maximum size of coarse aggregate for the following situation? a continuously
A pump of 80% efficiency lifts water from one large open tank to another; the difference in water surface elevations is 20 feet. The pipe is relatively smooth (f = 0.0122), and has 3 elbows, each with a loss coefficient of 2/3.
Saturated liquid water at 1.0 MPa is throttled adiabatically to a pressure of 0.4 MPa. If the change is kinetic energy is negligible, what percentage of the water evaporates during this throttling process?
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