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Water flow in a rectangular channel is to be metered by a thin-plate weir with side contractions, as in Table 10.2b, with L =6 ft and Y =1 ft. It is desired to measure flow rates between 1500 and 3000 gal/min with only a 6-in change in upstream water depth. What is the most appropriate length for the weir width b?
Also determine the temperature at the final state in part (b).
5 Kg of water at 1.2 MPa, 120oC is contained in a frictionless piston-cylinder device. The water is heated until its temperature reaches 250oC. a) a)Determine the work performed in kJ
assume that the earth is a smooth sphere and a steel band wrapped around the equator. if 10ft of steel is spliced into the band, what will be the resulting height of the band above the earth surface
each wire has a tension of 1kN and is inclined at 45 degree to the vertical. calculate the increase in vertical stress at a depth 1 m below the surface and the amount of elastic settlement below the axis of the pole if E = 40 Mpa and v=0.45
determine the elastic elongation that would be expected for a 16-mm-diameter rod of the same material if the rod were 1.6 m long and subjected to a tension force of 3.3 kN.
A concrete mix with a 3-inch slump, w/c ratio of .50, and sand with a finesse modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate per cubic yard. To adjust the mix so as to increase the compressive strenght
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.
The electric motor at A exerts a torque of 800N.m on the steel shaft from A to D. This has a torque of -300N.m at B and -500N.m at C. Design specificaions require that the diameter of the shaft be uniform from A to .
consider the cantilever beam-mass system. formulate and solve the minimum weight design.
a power plant burns 150,000 tonnes (1 tonne = 1,000 kg) of coal each year. The coal has 2.5% sulfur content, and the air pollution control equipment removals approximately 94% of sulfur. Assume 10% of the sulfur content ends up in the ash.
a whirlpool is modeled as the combination of a free and a forced vortex. the maximum velocity in the whirlpool is 10 m/s, and the radius at the juncture of the free and the forced vortex is 10m.
A sample of dry soil is mixed uniformly with 16 wt% water and then compacted into a cylindrical mold in the laboratory. The volume of moist soil is 1x10-3 m3 and its mass is equal to 1.60 kg.
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