Engineering

water flows in a cast-iron pipe of 550-mm diameter at a rate of 0.10 m3/s. determine the friction factor for this flow.
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which of the following is not an event to end a transaction? a. commit b. rollback c. graceful exit of a program d. program is aborted e. all of the above f. none of the above
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Assume that the flowrate. Q, of a gas from a smokestack is a function of the density of the ambient air,rhoarho a , the density of the gas,rhogrho g , within the stack, the acceleration of gravity, g, and the height and diameter of the stack, h and d, respectively. Use rhocrho c , d, and g as repeating variables to develop a set of pi terms that could be used to describe this problem.
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T/F. the force between the two wires 1. pulls the wires together.
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in describing the breedloves' funishings and the layout of the house, whta does morrison achieve?
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If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave? (A) 42.42 sin 314t (B) 60 sin 25 t (C) 30 sin 50 t (D) 84.84 sin 25 t 9
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(a) Calculate the %1C of the interatomic bond for the intermetallic compound TIA 13 (b) On the basis of this result, what type of interatomic bonding would you expect to be found in TiAlg?%IC
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As part of a heat treatment process, cylindrical, 304 stainless steel rods of 100-mm diameter are cooled from an initial temperature of 500 C by suspending them in an oil bath at 30 C. If a convection coefficient of 500 W/m2 K is maintained by circulation of the oil, how long does it take for the centerline of a rod to reach a temperature of 50 C, at which point it is withdrawn from the bath
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If myMovies collection is currently empty, how many documents would be inserted by the following call to insertMany().db.myMovies.insertMany([{"_id" : "tt0084726","title" : "Star Trek II: The Wrath of Khan","year" : 1982,"type" : "movie"},{"_id" : "tt0796366","title" : "Star Trek","year" : 2009,"type" : "movie"},{"_id" : "tt0084726","title" : "Star Trek II: The Wrath of Khan","year" : 1982,"type" : "movie"},{"_id" : "tt1408101","title" : "Star Trek Into Darkness","year" : 2013,"type" : "movie"},{"_id" : "tt0117731","title" : "Star Trek: First Contact","year" : 1996,"type" : "movie"}],{ordered: false})a)4b)2c)5d)0
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Use the given transfer function and identify the correct steady-state response Yss(t) to the given input function 17). T(S) Y(S) FS) = 52+10s+100,f (t) = 16 sin 51 Multiple Choice a. Yss (t) = 0.1775 sin (5t + 0.5880) b. Yss (t) = 0.2775 sin (5t - 0.5880) c. Yss (t) = 0.2775 sin (5t + 0.5880) d. Yss (t) = 0.1775 sin (5t - 0.5880)
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Which of the following files will be listed by the following UNIX command (select all that apply)? Is [abc]*e* A. aardvark B. ferret C. bonefish D. capybara E. seahorse
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data for a kaplan turbine is given as follows; head=5m & flow rate of water =120m/s; runner speed=120rev/min; runner diameter =5m; hub tip ratio of the runner=0.4; runner blade angle of entry =60; overall efficiency =80%. exit from the runner is axial. calculate the; a power b)specific speed c) exit angle of the inlet guide vanes d) exit angle of runner blades; and e)hydraulic efficiency
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.1. In which of the following page-replacement algorithms a tie may occur between two or more pages eligible for eviction (select all correct answers if any)?Choice 1 of 4: OptimalChoice 2 of 4: Second ChanceChoice 3 of 4: Least Recently UsedChoice 4 of 4: Aging
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a 503106 f capacitor is discharged through a resistor, whereby its potential difference decreases from its initial value of 94.5 v to 16.3 v in 3.21 s . find the resistance of the resistor.
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what is the following product? rootindex 3 startroot 4 endroot times startroot 3 endroot
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explain the following statement: a transaction is a logical unit of work. give an example not in the book and explain it.
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Write a function addElements which performs an addition operation on the elements in a vector if their indices are between min_index and max_index. Function Specifications: o The function name: addElements o The function parameters in this order: vector vect: a vector of integers int min_index: Minimum range of the indices of the vector int max_index: Maximum range of the indices of the vector o The function returns an integer depending on the following conditions: - It returns the sum of all elements in the vector(inclusive of min_index and max_index) It returns - 1 if min_index is greater than max_index - It returns -2 if either or both min_index and max_index exceed the bounds of the vector
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A 25mm square cross-section bar of length 300mm carries an axial compressive load of 50kN. Determine the stress set up in the bar and its change of length when the load is applied. For the bar material E = 200 GN/m^2
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Use a clock, a counter, and a demultiplexer to control whether a stop light is red, green or yellow. The stop light should be green for 40 seconds, followed by yellow for 10 seconds, and then red for 30 seconds, and then repeat. You can simply write by each output of the demultiplexer one of the words green, yellow, or red. Don't forget to specify how many Hz the clock needs to be.
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the minimum thickness in inches for a steel box measuring 6 in. 4 in. 3 in. is ___ in.
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Given an array of String objects, use streams to count how many have a length less than or equal to three. StringLengthDemo.java 1 import java.util.stream Streams 3 public class StringLength Demo 4 { 5 public static void main(String[] args) 6 { 7 String() names = [ {"Fred, Sam", "Ida", "Alice", "Abe"}; UOLTO LADY 9 long count am 1 System.out.println("Words: + count); ) 1 CodeCheck Reset Collect all strings of length greater than ten from a list of strings and store them in another 3. list. StreamsDemo.java 1 import java.util.List; 2 import java.util.stream.Stream; 3 import java.util.stream.Collectors; DAG N 00 01 mm 5 public class StreamsDemo 6 [ public static void main(String args) 8 { 9 List list = Util.getList() List result; 1 1 result 1 1 System.out.println(result); 1 } CodeCheck Reset
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Two ball bearings from different manufacturers are being considered for a certain application. Bearing A has a catalog rating of 2.12 kN based on a catalog rating system of 3000 hours at 500 rev/min. Bearing B has a catalog rating of 7.5 kN based on a catalog that rates at 106 cycles. For a given application, determine which bearing can carry the larger load.
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Why should the administrator (or the superuser) account never be locked regardless of how many incorrect login attempts are made? What should be done instead to alert the staff to the attempted intrusion, and how could the chances of such an attack succeeding be minimized?
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A common way to understand if a mechanism is correct is to use deuterium (D = 2H) in place of hydrogen in a reaction (the method is called isotopic labeling). If DCl in D2O replaced HCl and D2SO4 replaced H2SO4 and so on for all solvents in this reaction, for which mechanisms would you expect deuterium to be present in the double bond of fumaric acid? Explain how you arrived at your prediction using the mechanisms provided.
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