Master Engineering with Fun Quizzes & Brain Teasers!

When the Mars Exploration Rover was fully assembled, its mass was 180 kg. The acceleration due to gravity at the surface of Mars is 3.68 m/s2. a) What was the rover
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give an example where dijkstras algorithm gives the wrong answer in the presence of a negative edge but no negative-cost cycle.
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under what conditions might it be desirable for the contractor to use a structural subcontractor to erect the structural metal frame of the project?
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6. Use Solver to find target PHRE net commission amounts. a. Build a Solver problem with cell C17 as the objective cell. For the first solution, set the objective to a value of 50000 by changing cell C12. Save the results as a scenario named $50,000. b. Restore the original values and run another Solver problem to find a selling price for a PHRE commission of 75000. Save these results as a scenario named $75,000
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Computational Complexity of K-Means 1 point possible (graded) Remember that the K-Means algorithm is given by 1. Randomly select 21, ...,2K 2. Iterate 1. Given zi,... ZK, assign each x(i) to the closest zj, so that Cost (21, ...ZK) min, || 216) ; || 2. Given C1,...,CK find the best representatives 21,..., 2K, i.e. find 21,..., ZK such that = Liec; , 1 C; Assuming that there are n data points {{1,..., 2n}, K clusters and representatives, and each x; {21,..., In} is a vector of dimension d, what is the computational complexity for one complete iteration of the k-means algorithm? That is, find the time (or the number of steps) it takes to complete steps 2.1 and 2.2. Note on Big-O notation Show O(m) OnK) O(nK) (ndK) Computational Complexity of K-Medoids 2 points possible (graded) Remember that the K-Medoids algorithm is given by 1. Randomly select 21,...,2K 2. Iterate 1. Given zi,... ZK, assign each x(i) to the closest zj, so that Cost (21,...ZK) min dist (z (6),zj) -1 1- 1,..., 2. Given C; {C1, ...,Ck} find the best representative z; {21, ...,In} such that dist (zl), z;) 20) eC is minimal. What is the complexity of step 2.1? O(n) (nk) O(nK) O(nd) Now what is the complexity of step 2.2? OndK) O(nK?) O(nKPd) O(ndK)
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why does aluminum dent when hit with a hammer whereas glass shatters?
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which one lists the commands that are executed as a result of entering make on the linux command line?
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write a network echo server "echo_s", an echo client "echo_c", and a log server "log_s
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what is the flange thickness of w910x3.06?
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for the query "print ename, age, and sal for all employees," which of the listed index choices would you choose to speed up the query if your database system does consider index-only plans?
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Discuss how the frequency response of the resulting GLP FIR filter designed using the windowing method is related to the "ideal" filter and why the windowing operation does not destroy the GLP property.
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attempting to instantiate an object of a concrete class is a compilation error.T/F
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Which of the following would you expect to be elastomers and which thermosetting polymers at room temperature? Justify each choice. Note that answer can be "neither" it could be a thermoplast Linear and highly crystalline polyethylene phenol-formaldehyde Heavily crosslinked polysoprene having a glass transition temperature of 50 degree C Lightly crosslinked polysoprene having a glass transition temperature of -60 degree C Linear and partially amorphous poly (vinyl chloride)
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problem description and given info write (define) a public static method named countinlist, that takes two arguments that are both an arraylist of integer. this method must return a count (int) of the number of values in the first argument arraylist that are also in the second argument arraylist. for example: given an arraylist named list1 that contains this list of values: {1, 2, 1, 3, 2, 5, 6, 2, 4} and an arraylist named list2 that contains this list of values: {1, 2, 3} countinlist(list1, list2) should return 6 (because there are six values in list1 that are also in list2) given an arraylist named list1 that contains this list of values: {1, 2, 1, 3, 2, 5, 6, 2, 4} and an arraylist named list2 that contains this list of values: {2, 4} countinlist(list1, list2) should return 4 (because there are 4 values in list1 that are also in list2) given an arraylist named list1 that contains this list of values: {1, 2, 1, 3, 2, 5, 6, 2, 4} and an arraylist named list2 that contains this list of values: {7, 8, 9} countinlist(list1, list2) should return 0 (because there are 0 values in list1 that are also in list2) you may wish to write some additional code to test your method.
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You are given a tree T=(V, E) along with a designated root node r E V. The parent of any node vr, denoted p(v), is defined to be the node adjacent to u in the path from r to v. By convention, p(r) = r. For k > 1, define p^k(v)-p^k-1(p(v)) and p^1(v) = p(v) (so p^k(v) is the kth ancestor of v) Each vertex v of the tree has an associated non-negative integer label l(v). Give a linear-time algorithm to update the labels of all the vertices in T according to the following rule: I new(v) = l(p^l(v) (v))
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to condition ecg raw signals, you need to build the circuit with an amplifier and a band pass filter. draw a complete sketch of your circuit diagram. (for your ecg recording, you can consider electrode from right arm (ra) as a negative terminal and from left arm (la) as a positive terminal of your input). mark pin numbers of the amplifier and output of the circuit in your diagram
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interactive coding and question: change squarecontainer iterator operator*() so that it is a const method. (you may have already made this change in step 1). what is this supposed to mean? when you try to compile and run the program, what happens? does this appear to be consistent with the declaration of that operator as const? why or why not? in your opinion, should that operator be declared const? put your answer in .
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Which defect would you expect to exist in a higher concentration in ceramics? a Shottky defects b Frenkel defects
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when comparing the before-tax marr (marrbt) to the after-tax marr (marrat), what formula is appropriate?
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You have a Switch LED Lightbulb with the following information: It is equivalent to a 75 Watt incandescent lightbulb. It uses 20 Watts of electricity. It is estimated to last 25,000 hours. The purchase price of the lightbulb is $51.99.The package claims an estimated energy cost of $2.41 per year, but this estimate is not based on local electricity costs. Assume that local electricity costs $0.086 per kW-hr.Based on this information, we can now calculate the cost of ownership for this bulb. The cost of ownership is defined as the purchase price of the lightbulb plus the cost of the electricity required to run the lightbulb until failure.Note the equation below: Purchase price + Total electricity cost = Cost of ownership Calculate the cost of ownership for this lightbulb. Then select the answer below that matches your calculation.a.$40.14b.$51.99c.$94.99d.$103.98
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Sanya, an IT administrator for an organization, installs a new application on 150 computers used by programmers in the organization. She does this with a few clicks only for this specific set of users without impacting the rest of the organization.Which of the following features of Active Directory is exemplified by Sanya's actions in this scenario?a. A member serverb. Access Control Listc. Group Policyd. A standalone server
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what is the modulus of a 6 stage johnson counter
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Which one of the following statements is not true with regard to built up edge (BUE) formation during machining? a) BUE formation is desired because it reduces the surface roughness of the machined surface and gives it a high lustrous appearance b) BUE formation is due to workpiece metal randomly welding to the cutting tool and fracturing off in the cut zone c) BUE formation is typically encountered during the machining of soft, ductile, metals at low cutting speeds d) BUE formation is more likely to occur when cutting fluid is not applied to the cut zone e) None of the above
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what is the minimum acceptable rate of 1 sigma of quality production?
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