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A 60-Hz, 440-V, three-phase system feeds two balanced wye-connected loads in parallel. One load has a per-phase impedance of 8 + j3 Ω and the other 4 - j1 Ω. Compute the real power in kW delivered to
(a) the inductive load, and
(b) the capacitive load.
His Ph.D. research atStanford focused on computer simulations of how mechanical stresses affect bone growth and adaptive changes around implants. He was doing biomechanics but "with a little 'b' and a big 'M'," he says.
Calculate the molarity of each of the following aqueous solutions. a. 5.0 ppb Hg in H2O b. 1.0 ppb CHCl3 in H2O c. 10.0 ppm As in H2O d. 0.10 ppm DDT (C14H9Cl5) in H2O.
Discuss the criteria that you would use to determine the required dimentions of this device. What are the potential failure mechanisms? What materials might be appropriate for the manufacture of this device, and why?
Does the total-product-of-labor function TP^1(1) = 32^2exhibit decreasing (marginal) returns to the fixed factor k? Why or why not?
List the formulas of three soluble bromide salts and three insoluble bromide salts. Do the same exercise for sulfate salts, hydroxide salts, and phosphate salts (list three soluble salts and three insoluble salts).
Why does Al as (Al sheet) react with HCl and Al as (Al foil) not react with HCl? and why do they both not react with a weak acid?and why does steel neither react with a weak nor a strong acid?
Does this distribution fit a normal distribution curve?
You add an aqueous solution of lead nitrate to an aqueous solution of potassium iodide. Draw highly magnified views of each solution individually, and the mixed solution including any product that forms.
Determine the reactive kVA of the motor, and the overall power factor of the motor and the load.
If the operating coil has 1800 turns carrying a current of 1 A, and the gaps are set at 0.125 cm each, find the pull that must be exerted by the spring. You may neglect leakage and fringing.
Calculate the feed rate F and the product rate - Evaporation in Double-Effect Reverse-Feed Evaporators.
How many kg of benzene are condensed by this process per 1000 m3 of the original mixture if the vapor pressure of at 21.1oC is 75 mm Hg?
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