Engineering

(T/F) The tensile strength of concrete is ignored for Strength Design.
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how has ICT made the world smaller
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Consider a half-wave peak rectifier fed with a voltage vS having a triangular waveform with 24-V peak-to-peak amplitude, zero average, and 1-kHz frequency. Assume that the diode has a 0.7-V drop when conducting. Let the load resistance R = 100 and the filter capacitor C = 100 F. Find the average dc output voltage, the time interval during which the diode conducts, the average diode current during conduction, and the maximum diode current.
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Suppose repeat 'y', both the following if statements will evaluate to True?if repeat-'y' or repeat
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A glider has wings of elliptical planform of aspect ratio 6. The total drag is given by CD = 0.02 + 0.06G. Find the change in minimum angle of glide if the aspect ratio is increased to 10
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if the potemtiometer described in problem 14 is set at 2k, what atre the values for ic and vce
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A free damped single-degree-freedom vibration system has following parameters: mass: m-2 kg, the spring k-2000 N/m, and the viscous damping coefficient c-60 N-s/m. (30%) (1) Calculate the critical damping constant (2) Damping ratio (3) The damped natural angular frequency (4) The Logarithmic decrement (5) If the initial conditions are xo -0.002(m) and 2.0(m s), determine the response of the system which will be expressed by the cosine term.
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repeat exercise 14.24 for the following different set of functional dependen- cies g = {{a, b}{c}, {b, d}{e, f}, {a, d}{g, h}, {a}{i}, {h}{j}}.
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enter a single 16-bit lc-3 instruction (in binary) that decrements the value in r3 by 10.
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The reactance of a capacitor (in ohms) is given by 1/.C , where is in radians per second. Given the C = 0.001-F capacitor that we will use in lab, what do we expect the reactance to be? Use f = 1 kHz.
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Consider a mechatronic device that uses a temperature sensor mounted inside a thermal test chamber. The temperature of the chamber varies with a frequency between 1 and 6 Hz. What sensor time constant is required to achieve a magnitude error within 4%?
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When a horizontal laminar flow occurs between two parallel plates of infinite extent 0.3 m apart, the velocity at the midpoint between the plates is 2.7 m/s. Calculate (a) the flow rate through a cross section 0.9 m wide, (b) the velocity gradient at the surface of the plate, (c) the wall shearing stress if the fluid has viscosity 1.44 P s, and (d) the pressure drop in each 30 m along the flow.
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What is rms value of a notched harmonic elimination
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The signal xc (t) = sin(2f0t) has a frequency f0 = 138 and was sampled with a sampling period of T = 1/471 seconds/sample to obtain a discrete-time signal x[n]. what is the discrete frequency of the resulting sequence x[n] in radians/sample?
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Although XL and R are both measured in ohms, they cannot be added by simple arithmetic.True or FalseWhen sine wave variations of current produce an induced voltage, the current lags its induced voltage by exactly 90.True or FalseThe angle between the generator voltage and its current is the phase angle of the circuit and its symbol .True or FalseIn a series circuit, the higher the value of XL compared with R, the more inductive the circuitTrue or False
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The maximum permitted levels of pesticide residues in food products are set by tolerance levels. Assuming that the current tolerance level of lindane of 4 ppm for hog fat would also apply to fish, would trout from a lake with a concentration of 0.1 ppm of lindane in water (caused by accidental contamination) be considered fit for human consumption? Base your estimate on a log BCF value for lindane of 2.51 mg/kg issue per mg lindane/L water.
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Clues are hints about potential hazards.
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In the first problem, there were 9 processes, many of which were listed as pairs under the precedence relation. Suppose we are dealing with a system of only 5 processes named P1 through P5. You are given a set of constraints that are expressed by the following precedence relation: = {(P1,P3), (P1, P5), (P2,P4), (P3, P4), (P4, P5)} Provide pseudocode to show how you can use semaphores to enforce these constraints (i.e., the precedence relation ).
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Keys and Subclasses saved Why are key attributes only allowed on root entity sets (not derived subclasses)? A value may be in multiple subclasses, meaning they would have too many key attributes. A value may not have a subclass, meaning it wouldn't have the needed key attributes. A value can have only one key attribute, so having key attributes in subclass entity sets would violate this. Key attributes are optional, so they must always be in subclass entity sets.
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Print the following 7 mm high betweenguidelines:PUMP, CYLINDER: PISTON RECTANGLE; SQUARE, CONSTRUCTION?
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What is the status of the C and Z flags after the following code? a. LDI R20,0xFF b. LDI R21,1 c. ADD R20, R21
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On an online recruiting platform, each recruiting company can make a request for their candidates tocomplete a personalized skill assessment. The assessment can contain tasks in three categories: SQL,Algo and BugFixing. Following the assessment, the company receives a report containing, for eachcandidate, their declared years of experience (an integer between 0 and 100) and their score in eachcategory. The score is the number of points from 0 to 100, or NULL, which means there was no task inthis category.You are given a table, assessments, with the following structure:create table assessments (id integer not null,experience integer not null,Helsql integer,algo integer,bug fixing integer,unique(id)Your task is to write an SQL query that, for each different length of experience, counts the number ofcandidates with precisely that amount of experience and how many of them got a perfect score in eachcategory in which they were requested to solve tasks (so a NULL score is here treated as a perfectscore).Your query should return a table containing the following columns: exp (each candidate's years ofexperience), max (number of assessments achieving the maximum score), count (total number ofassessments). Rows should be ordered by decreasing exp.Examples:1. Given:assessments:
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A major studio in Hollywood is paying you to design a database that keeps track of information for it movie production. Congratulations! The database should track the following information: The names of the movies, the year in which a movie was produced, the rating for the movie (e.g. G, PG, PG-13, R, etc.) The first and last names of actors for each movie. A movie may have several actors and an actor can act in multiple movies. keep track of which actors were starring actors in the movie and which were supporting actors the amount of money each actor was paid for making the movie the names and addresses of the theatres where each movie was shown (there can be many theatres where each movie was shown) The number of tickets sold for each movie at each theatre The price per ticket of each movie at each theatre The revenue of each movie at each theater (for the purpose of this assignment you should assume that a theatre charges the same amount of money for every ticket that it sells.)
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Membrane adsorbers are used in the production of protein-based therapeutics which can be used to treat autoimmune diseases and as targeting vectors for cancer treatments. A typical feed to a membrane adsorber column will contain 0.5 mg/mL of protein (IgG) and 150 mM NaCl. As a process engineer at Renner Pharmaceuticals, you are responsible for designing the initial process. Equilibrium adsorption data for the commercial membrane adsorber is provided from the manufacturer and summarized below in Figure 1.A) If a membrane adsorber column contains 1 g of membrane, estimate how much protein will be captured if the column is run to overload (i.e. 100% breakthrough or C/Co = 1). You may assume the volumetric flowrate is low, e.g. 1 mL/min. You may assume the density of the polymer membrane is 1 g/mL.
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