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A new chemical remediation tank is needed. Current technology tanks, which costs $150,000, MUST BE DRAINED AND TREATED EVERY TWO YEARS AT A COST OF $30,000; THE TANKS WILL LAST TEN YEARS, AND EACH WILL HAVE A SALVAGE VALUE OF 5%. OF FIRST COST. A TANK WITH NEW TECHNOLOGY HAS JUST COME TO MARKET. THERE ARE NO PERIODIC MAINTENANCE, AND A TANK WILL LAST 20 YEARS. IF THE NEW TANKS COST$325,000, WHAT MINIMUM SALVAGE VALUE, AS A PERCENTAGE OF FIRST COST, WOULD BE REQUIRED FOR THIS TECHNOLOGY TO BE A BETTER OPTION? USE A 12% INTEREST RATE. A) 10% B) 36% C) 57% D) 75%
The traffic that makes a left turnat an intersection consists of two types of vehicles, Type A andB. A type A vehicle is twice the length of the type B. THe left turn lane can accommodate ten vehicles of type B, five oftype A.
A bar of monel metal (length L=9 in., diameter d=0.225 in.) is loaded axially by a tensile force P. If the bar elongates by 0.0195 in., what is the decrease in diameter d What is the magnitude of the load P
Wheeling-Pittsburgh Steel is investigating whether it should it should replace some of the basic oxygen furnace equipment now or wait to do it later. The cost later (i.e. 3 years from now) is estimated to be $1,700,000.
You are furnished with three sizes of particles. One is gravel with porosity of 0.32, the second is a coarse grained sand with porosity of 0.37, and the third is a fine grained sand with porosity of 0.23.
A rod is subjected to a tensile load of 25k and has a diameter or 2in, determine the principle strains at a point on the surface of the rod
The hydraulic conductivity of a coarse sand was measured in the laboratory permeameter and found to be 1.03x10^-2 cm/s at 25 degrees C. What is the intrinsic permeability
A barge has the trapeziodal shape and is 22 m long into the paper. If the total weight of barge and cargo is 350 tons, what is the draft H of the barge when floating in sea water
One method of removing phosphate from wastewater effluents is to precipitate it with aluminum sulfate. A plausible stoichiometry (but not exact because aluminum and phosphate can form many different chemical materials) is
What type of exercise takes place in a classroom setting arranged to look like an emergency operations center or in an actual emergency operations center, and involves simulation using written, telephone, and radio messaging.
A consolidated-undrained type of test is performed. The sample fails (shears) when the total all-around confirming pressure is 45 kpa and the total axial pressure is 97 kpa.
A dam project specifies 97% compaction. Lab tests on the soil being used indicate that it has a maximum dry density of 1900 kg/m3 at an optimum water content of 13.2%. Field tests give the following results: Field dry density is 1790 kg/m3 and 16...
how many kilograms each of pearlite and preutectoid phase form? schematically sketch and label the resulting microstructure
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