Numerade

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Some people refer to family systems as a baby mobile. Using the concepts and terms we have learned, how does a baby mobile describe a family system? Give an example of circular causality and explain how your example might impact different members of the family. Be specific and thorough in your response.

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Discuss the significance of benchmarking in process optimization and provide an example.

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2. Modeling and Solving (1) Find the current $I(t)$ of the RL-series circuit with $E(t) = 100V$, $R = 10\Omega$, $L = 2H$, and that the current is initially zero. (2) Find the current $I(t)$ of the RC-series circuit with $E(t) = 100V$, $R = \begin{cases} 200 - t, & 0 \le t \le 200 \\ 10, & t > 200 \end{cases} \Omega$, and $C = 0.25F$. (3) The tank in Figure contains 200 lb of salt dissolved in 1,000 gal of water. The inflow per minute is $1 + \cos t$ lb of salt dissolved in 50 gal of water. The outflow is 50 gal min of the uniform mixture. Find the salt $y(t)$ in the tank.

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An aqueous solution at 25°C has a hydronium ion concentration of $9.7 \times 10^{-5}$ M. What is the hydroxide ion concentration of the solution? • Your answer should include two significant figures. • Write your answer in scientific notation. Use the multiplication symbol rather than the letter $x$ in your answer.

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When double-stranded DNA is heated to 95°C, the bonds between complementary base pairs break to produce single-stranded DNA. Considering this observation, is the reaction shown in step 1 spontaneous? Why or why not? See Section 4.2 (Page). Yes. Energy is released. Yes. A continuous input of energy is required. No. Energy is released. No. A continuous input of energy is required.

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Table: Growth Rates and Real GDP per Capita Real GDP per capita Economic growth rate Country A $8,000 7% Country B $10,000 6% Country C $12,000 3% Country D $23,000 2% Which country will reach a real GDP per capita of $80,000 the most quickly if the growth rates in the table are maintained? O country D country A country B country C

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7.(5pts) A Bernoulli trial with success probability $p = \frac{2}{3}$ is independently repeated until three successes come up. What is the probability that 8 trials are required?

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Refrigerant 134a is compressed at steady state from initial state 1 to final state 2. The initial state conditions are 2.4 bar and 1°C whereas the final state conditions are 12 bar and 50°C. The power input to the compressor is 2.6 kW. Neglect kinetic and potential energy changes. Determine the mass flow rate of 134a, in kg/min, assuming that no heat is crossing the control volume boundary.

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8. Your team is in the middle of a project. Mary dictates who is doing what job. How could this team improve their teamwork? Select one: a. Need a new staff member. b. Mary should ask if anyone else needs help or has suggestions. c. Mary should start on another project. d. Nothing needs to change. 9. If you stuff up at work what will you do? Select one: a. Do nothing, as no one will know. b. Blame it on an incompetent manager. c. Wear it/Own it as it is your mistake. 10. Why does a company choose to employ a more sustainable and environment friendly options? Select one a. Long run as it is cheaper b. Short run it is cheaper, more expensive in the long run. c. They support sustainable environment d. They care about the environment. 11. In Australia who regulates the construction and building industry including builders' licenses? Select one or more: a. Engineers Australia b. NSW Fair Trading c. Australian Building Society d. Government of Australian Capital Territory.

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Find the power series solution for the differential equation $y'' + 3xy' - y = 0$ with the initial conditions $y(0) = 2$ and $y'(0) = 0$. A. $y = x^2 + \frac{5}{12}x^4 + \frac{11}{72}x^6 + ...$ B. $y = x^2 - \frac{5}{12}x^4 + \frac{11}{72}x^6 + ...$ C. $y = 2 + x^2 + \frac{5}{12}x^4 + \frac{11}{72}x^6 + ...$ D. $y = 2 + x^2 - \frac{5}{12}x^4 + \frac{11}{72}x^6 + ...$

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heather j.