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brian brown

brian b.

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The rate constant for the reaction of CO producing C and CO2 was determined experimentally to be 6.51x10-2 L mol-1 s-1 at 1000. K. A reaction began with a pressure of CO equal to 250. Torr in a closed vessel. How long would it take (in s) for the total pressure to reach a value of 225. Torr? 2CO-> CO2 + C

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On which two interfaces or ports can security be improved by configuring executive timeouts? (Choose two.) serial interfaces loopback interfaces console ports vty ports Fast Ethernet interfaces Navigation Bar

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25) Find the complex number $z = -2 - 2\sqrt{3}i$ in trigonometric (polar) form.

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The blank stage of Lewin model addresses, helping people and organizations institutionalize the changes.

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Which atrioventricular valve is found between the left atrium and left ventricle is A tricuspid valve B aortic semilunar C bicuspid valve D pulmonary semilunar

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You are considering a project with cash flows of $44,500, $18,000, and $33,000 at the end of each year for the next three years, respectively. What is the present value of these cash flows, given a discount rate of 8.1 percent? $118,706 $120,637 $75,601 $82,693 $88,344 Question 34 2.5 pts What is the future value of $1,575 deposited at the end of each month for 25 years? Assume an interest rate of 6.3 percent interest, compounded monthly. $1,143,264 $19,572 $237,641 $90,152 $1,081,824

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A suit is on sale for $584, which is 73% of the regular price. What is the regular price?

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2Tries/30 Tries/30 If the wire is tipped so that it now makes an angle of 14.4° with the horizontal, what force will it now feel? The force on a wire is a maximum of 5.42N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is

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In a large electrical cabinet, heat sinks are used to separate components that are arranged in long rows. The figure below shows one of the heat sinks. The heat sinks are constructed from aluminum and are 24 [mm] wide and 142 x 100 [mm] in cross-section. Each heat sink consists of 20 rectangular air channels of dimensions 5 x 20 [mm] separated by 2 [mm] thick fins, which join seamlessly to the base plates, which are also 2 [mm] thick. The heat sinks are press-fitted between components yielding a contact resistance between the base and the components of $R_{tc} = 0.5 \times 10^{-4} [m^2 K/W]$. To promote cooling, air at 25 [$\degree$C] is forced through the cabinet to yield a volumetric flow rate of 0.08 [$m^3/s$] per heat sink. Consider the maximum operating conditions where the component temperature is 90 [$\degree$C]. Under this condition, how much power is dissipated per heat sink? (hint: take advantage of symmetry). Assumption: temperature rise of the air may be assumed negligible.

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6 kN/m 6 kN/m C A B 1.5 m 1.5 m

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