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QUESTION 1 Under an applied axial load, a rod elongates by 0.48 in. If the rod is 9 ft long, and has a 2.3 in. diameter. If the transverse deformation of the rod is 0.0022 in., calculate the material's Poisson's ratio: _____. Pay calculate your answer to 3 significant figures.

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Contributions of the normal microbiota to human health include all of the following EXCEPT O protecting us against infections O competing with human cells for nutrients O helping with digestion O producing substances beneficial to human health

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If the original price x of a North Face jacket is discounted 11%, write an expression for the selling price of the jacket.

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7) Sequential Analysis (9 marks) Consider the sequential circuit below. It has one input (X), one output (Z), and two state variables (Q1 and Q0). The D-FF is positive-edge-triggered. 3-to-8 Decoder DO Q YO QO Y1 Q QO 10 11 Y2 Q1 x - 12 Y3 D1 Q1 Y4 Y5 Y6 QO' En Y7 J... Z a P yu a) Is this Mealy or Moore machine?(Meu{ t ih C b) Extract the state and the output equations. t , 9 c) Fill in the state table. ! 1 ! 0 d) Draw the state diagram of the circuit. Present Q1 Q0 0 0 0 0 0 1 0 1 1 0 1 0 1 1 1 1 State Input Excitation Next x D1 DO Q1* 00 0 0 0 b 1 1 0 1 1 0 0 1 0 Q 1 1 Output Z so s1 C> 2 S2 S3

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if g is the function given by g(x) = 1/3 x^3 + 3/2x^2 -70x+5, on which of the following intervals is g decreasing

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5. Suppose a photovoltaic cell is illuminated with radiation having a spectral energy density given by $u(\nu) = \begin{cases} b\nu, & 0 < \nu < \nu_1 \\ 0, & \nu > \nu_1 \end{cases}$ where $b$ and $\nu_1$ are positive constants. Note this is not the blackbody spectrum. Find the optimal band-gap frequency $\bar{\nu}$ that would maximize the fraction of the radiation energy converted to electrical energy. Find the maximum value of this conversion efficiency. {3}

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Title: SQL Queries and Database Analysis Text: All questions pertaining to the above Database. Explain the following SQL query and present the results of executing the query. (10 points) SELECT Fname, Lname FROM Employee WHERE EXISTS (SELECT * FROM DEPENDENT WHERE Ssn = Essn) AND EXISTS (SELECT * FROM Department WHERE Ssn = Mgr_Ssn); Write a SQL query to do the following: for each department whose average employee salary is more than $30,000, retrieve the department name and the number of male employees working for that department. (10 points) EMPLOYEE Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn Dno John B Smith 123456789 1965-01-09 731 Fondren, Houston, TX M 30000 333445555 Franklin T Wong 333445555 1955-12-08 638 Voss, Houston, TX M 40000 888665555 Alicia Zelaya 999887777 1968-01-19 3321 Castle, Spring, TX F 25000 987654321 Jennifer S Wallace 987654321 1941-06-20 291 Berry, Bellaire, TX F 43000 888665555 Ramesh K Narayan 666884444 1962-09-15 975 Fire Oak, Humble, TX M 38000 333445555 Joyce A English 453453453 1972-07-31 5631 Rice, Houston, TX F 25000 333445555 Ahmad V Jabbar 987987987 1969-03-29 980 Dallas, Houston, TX M 25000 987654321 James E Borg 888665555 1937-11-10 450 Stone, Houston, TX M 55000 NULL 1 DEPARTMENT DEPT_LOCATIONS Dnumber Dlocation 1 Houston 4 Stafford 5 Bellaire 5 Sugarland 5 Houston Dname Research Dnumber Mgr_ssn 333445555 987654321 888665555 Mgr_start_date 1988-05-22 1995-01-01 5 4 Administration Headquarters 1 1981-06-19 WORKS_ON PROJECT Essn 123456789 123456789 666884444 Pno 1 2 3 1 2 2 3 10 20 Hours 32.5 7.5 40.0 20.0 20.0 10.0 10.0 10.0 10.0 Pname Pnumber Plocation ProductX 1 Bellaire ProductY 2 Sugarland ProductZ 3 Houston Computerization 10 Stafford Reorganization 20 Houston Newbenefits 30 Stafford Dnum 5 5 5 4 1 4 453453453 453453453 333445555 333445555 333445555 DEPENDENT Essn 333445555 333445555 Dependent_name Sex F M F M Bdate Relationship 1986-04-05 Daughter 1983-10-25 Son 1958-05-03 Spouse 1942-02-28 Spouse 1988-01-04 Son 1988-12-30 Daughter 1967-05-05 Spouse 999887777 30 10 10 30 30 30.0 10.0 35.0 5.0 Alice Theodore Joy Abner 999887777 333445555 987987987 333445555 987654321 987987987 987654321 20.0 123456789 Michael M F F 987654321 20 15.0 123456789 Alice Elizabeth 888665555 20 NULL 123456789

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Shown below is a lobe of $y = \sin\theta$ from $\theta = 0$ to $\theta = 180$. The speed is set by adjusting the value of y so that the degrees spent above y over the total degrees is somewhere between 0 and 1. This is the duty cycle, call it D. Notice D $\in$ [0, 1]. Duty Cycle = $\frac{\text{degree interval while on}}{\text{total degrees}} = D = \frac{\theta_2 - \theta_1}{180}$ For instance, setting y = 0 would be full power because it is always on; while setting y = 1 would be OFF because there is no ON interval (except for a single point). The goal is to find the y setting needed to achieve a given D. a) Write an expression for $\theta_1$ in terms of y. b) Write an expression for $\theta_2$ in terms of y. c) Write an expression for the difference $\theta_2 - \theta_1$ in terms of y. d) Substitute your expression in (c) into the equation for Duty Cycle D above. e) Solve your expression in (d) for y to obtain the form y = f(D) for some function f(-). f) Find the y value needed for a 25% duty cycle.

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Astro Airlines provides flyovers of Minute Maid Stadium and downtown for tourists. Data concerning the company's operations in July appear below: Astro Airlines Operating Data For the Month Ended July 31 Flights (g) Revenue ($340.00g) Expenses: Wages and salaries ($3,600 + $88.00g) Fuel ($33.00g) Airport fees ($880 + $33.00g) Aircraft depreciation ($11.00g) Office expenses ($250 + $1.00g) Total expense Net operating income Actual Flexible Planning Results Budget Budget 58 58 56 $16,200 $19,720 $19,040 8,668 8,704 8,528 2,078 1,914 1,848 2,679 2,794 2,728 638 638 616 476 308 306 14,539 14,358 14,026 $ 1,661 $ 5,362 $ 5,014 Tourists can purchase tickets individually or hire an entire plane at a discount. Astro Airlines measures its activity in terms of flights Required: 1. Prepare a flexible budget performance report for July that includes revenue and spending variances and activity variances. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for

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10. Determine the required size THW-2 (90 °C) copper conductor and overcurrent device standard rating required to supply a 3-phase load of 150 A with a 3-phase, 4-wire circuit in an ambient temp of 30 °C.

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