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A floating platform is supported at each corner by a hollow sealed cylinder 1 m in diameter, the platform itself weighs 25kN in air and each cylinder weighs 1.2kN per meter of length. If the length of each cylinder is 3m how far does the platform float above the water surface, assume specific weight of water =10000N/m^3
A circular plate is loaded with a total load of 60 kips distributed uniformly over the surface at a pressure of 100 psi. Calculate the vertical stress at every combination of the following: (a) Depth: 12 and 50 (b) Radial distance from the center ..
A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard.
It has been determined experimentally that the reaction follows frst order kinetics with respect to both oxygen andhydrogen sulfide concentrations: d[H2S]/dt =-k[H2S][O2]
The roadway is to be widened which will require a slope face cut at a steeper angle. Assume zero cohesion along the joints. What engineering parameter must the joint surfaces possess (magnitude) to be stable
The frame shown is used to support high-tension wires. If W = 200 lb, b = 3 ft, a = 30°, what is the axial force in member HJ?
air enters a turbine operating at steady state at 8 bar, 1127 C and exits at 1.5 bar, 347 C. The heat transfer from the turbine to its surroundings is 10 kJ/kg of air flowing through the turbine.
general price inflation is estimated to be 3% for the next 5 years, 5% the 5 years after that, and 8% the following five years. If you invest $10,000 at the market rate of 10% for those 15 years,
The maximum permissable fecal coliform concentration that may be discharged is 2,000 fecal coliform CFU/L. It is proposed that a pipe carrying the wastewater be used for disinfection process.
The house has a 1 m high dirt-floored crawl space. The emission rate of radon into the crawl space is reported to be 0.6 pCi/m2s. An exhaust system was added to provide 1 air exchange per hour (ACH) in the crawl space. The outdoor concentration of..
a simply supported beam with a span of 8m is to carry, in addition to its weight, a superimposed dead load of 18kN/m and a live load of 30kN/m both over the entire span.
Air enters an adiabatic compressor at 100 kPa and 17 degrees C at a rate of 2.4 m^3/s. It exits at 257 Degrees (C). The compressor has an isentropic efficiency of 84%. Neglecting the changes in kinetic and potential energy
The sodium cyanide solution ([NaCN]-total = 0.01 M) is kept at pH 10.4. The pH is kept high to keep the cyanide in the CN- form. If CN protonates by the reverse of the HCN dissociation reaction,
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