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1.what is a space truss structure? Is the London eye in London England an example of a space truss structure?
2.A wastewater treatment plant receives 15 mgd of flow, with solids concentration of 230 mg/L. How many pounds of solids enter the plant every year?
3.A mass m = 0.05kg of CO2 (molecular weight 44) is compressed from the state 1 ( p = 1bar, T = 15 degrees celcuis) until state 2 ( p=8.3 bar and V= 0.004m^3) Calculate the change in entropy (Cp=0.88 kj / kgK
4.This is an Excel Problem a) Calculate the monthly loan payment to repay a $100,000 home loan at 7% APR over 30 years. b) How much more must be paid each month to pay off the loan in 15 years?
A bridge has cylindrical piers 1 m in diameter and spaced 15 m apart. Downstream of the bridge where the flow disturbance from the piers is no longer present, the flow depth is 2.9 m and the mean velocity is 2.5 m/s.
What is the Hydraulic Radius of Trapezoidal channel that has a bottom width of 9 feet, side slopes 3:1 (H:V) and the flow depth is 6 feet.
The piezometers are 280 m apart. The difference in piezometric head bewteen the two is 1.4 m. The aquifer hydraulic conductivity is 50 m/d and the porosity is 20%.
How many particles would be present in a cubic meter of aerosol at the concentration of the U.S. PM-10 standard or 50 micrograms/cubic meter if the particles are .1 micrometer in diameter.
a consolidated-drained triaxial shear test on a normally consolidated clay yielded a drained friction angle of 28
The casting has a mass of 3Mg. Suspended in a vertical position and initially at rest, it ia given an upward speed of 200mm/s in o.s^s using a crane hook H. Determine the tension in cables AC and AB during this time interval if acceleration is con..
A U manometer reads 20 cm air as operating fluid and a given manometric fluid. A single branch closed tube reads 35 cm connected to point 1. If P2 = 1.2 ATM calculate the pressure in point 1 and the density of the manometric fluid.
A second load P2 is uniformly distributed around the cap plate at B. The diameters and thicknesses of the upper and lower parts of the post are dAB= 1.25 in, tAB= 0.5 in, dBC= 2.25 in and tBC= .375 in respectively.
Soil is excavated from a borrow to construct an embankment with a net volume of 50,000 cy. This is performed by compacting 12-in layers of the soil to a dry weight of 110 pcf at a moisture content of 18%.
The tower crane is used to hoist the 2-Mg load upward at constant velocity. The 1.5-Mg jib BD , 0.5-Mg jib BC , and 6-Mg counterweight C have centers of mass at G1 , G2 , and G3 , respectively.
A container of petrol on a set of scales is used to measure the rate at which fuel is used by an engine under test. In one test the weight measured by the scales decreases by 25.0 N in 1 hour.
Calculate the minimum set-back distance required for a national highway of 4 lane divided carriageway having circular curve of radius of 350 m & design speed 100 km/hr.
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