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jeffrey diaz

jeffrey d.

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In a solution that is 80% ethyl alcohol and 20% water, the solute is ______ and the solvent is ______. Enter your answers separated by a comma.

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(a) Determine the electric field strength at a point 1.00 cm to the left of the middle charge shown in the figure below. (Enter the magnitude of the electric field only.) 6.00 $\mu$C 1.50 $\mu$C -2.00 $\mu$C 3.00 cm 2.00 cm N/C (b) If a charge of -7.66 $\mu$C is placed at this point, what are the magnitude and direction of the force on it? magnitude N direction --Select--

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Steel is heated by passing an electric current of 300 A. The specific resistance and the thermal conductivity of the steel are 0.8 mm/m and 35 W/mK, respectively. The inner and outer diameter of the tube is 9.5 mm and 10 mm, and the length of the tube is 1 m. If the heat generated in the tube is transferred from its inner surface to outer surface, calculate the volumetric rate of heat transfer from the tube and the temperature drop across the wall of the tube. (Hint: Look into electricity and heat analogy and their units)

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Problem 2- calculate and construct the refraction time-distance curve for shot points S0, S1, S2, S3, and S4 as it is shown in the figure below, and sketch the coverage in the refractor. Note: assuming this problem as horizontal and reversed shooting was carried between each sector. SO 120m S1 S2 S3 S4 h= 20m V0= 1500 m/sec 1) V1= 3000m/sec 2) V1= 5000m/sec

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[-/3 Points] DETAILS MY NOTES ASK YOUR TEACHER Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express the quotient $\frac{P(x)}{D(x)}$ in the form $\frac{P(x)}{D(x)} = Q(x) + \frac{R(x)}{D(x)}$ $P(x) = 3x^2 - 10x - 5$, $D(x) = x - 3$ $\frac{P(x)}{D(x)} = $ Need Help? Show My Work (Optional) Viewing Saved Work Revert to Last Response Submit Answer MY NOTES ASK YOUR TEACHER 3. [-/3 Points] DETAILS Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express the quotient $\frac{P(x)}{D(x)}$ in the form $\frac{P(x)}{D(x)} = Q(x) + \frac{R(x)}{D(x)}$ $P(x) = 6x^2 + x^2 - 12x + 5$, $D(x) = 3x - 4$

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Please explain in 1 or 2 sentences, you can simply copy paste output from Terminal where appropriate. 1) Run "ls -IF /" command on terminal. Try again without F. What is the output and what does it mean? 2) Run "ls", and then run "ls -a" command on terminal. What is the difference? 3) Use "cd" command to browese - /etc, /home, /bin, /tmp, /var directories. Use "ls" command to view their content. 4) What is the difference between the output of "ls ????e" and "ls g???e*" command? 5) Type "touch myfile{1,2,3}", then run "ls -l". What just happened? Now run, "chmod 777 myfile1", then run "chmod a+x myfile2". Now run "ls -l" again. Explain the changes in file permissions as a result. 6) Now run "rm myfile*", then run "ls -l". What happened? 7) Observe the output of "ps u" and "top" commands, press q to exit from "top". Are there similarities, differences? 8) Find the PID of a process using "top" command, then use "kill PID" to kill it. 9) Run "ps -eo pid,ppid,cmd, %mem,%cpu --sort=-%cpu | head" in terminal and interpret the output. 10) Run "ps aux | less" and observe output.

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Problem 2. A system has transfer matrix G(s)=Y(s)/U(s) given by $\frac{1}{(s+1)(s+2)} \begin{pmatrix} s+4 & -1\\ 0 & s+3 \end{pmatrix}$ 1. What are the poles of G(s)? Is the system stable? Show. 2. What is the characteristic polynomial $\phi(s)$ of G(s)? 3. What are the transmission zeros of G(s). 4. Determine a state-space realization by finding the A, B, C and D matrices. 1. Minors of order 1 $M_{11} = \frac{s+4}{(s+1)(s+2)} \implies p_1 = -1 \\ p_2 = -2$ $M_{12} = \frac{-1}{(s+1)(s+2)} \implies p_1 = -1 \\ p_2 = -2$ $M_{21} = 0$ $M_{22} = \frac{s+3}{(s+1)(s+2)} \implies p_1 = -1 \\ p_2 = -2$ Sys. Stable Since -ve

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Cartilage is found in strategic places in the human skeleton. What is responsible for the resilience of cartilage? water

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Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Superheated water vapor at 180 psia and 550°F is allowed to cool at constant volume until the temperature drops to 250°F. Use data from the steam tables. At the final state, determine the quality. (You must provide an answer before moving to the next part) The quality is

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For example, quantitative researchers might study the fear and anxiety that children feel before surgery by asking them to answer questions, using a numerical scale, about how fearful or anxious they are. This data could then be compared to data for children not facing surgery to determine if a statistically significant difference exists between the two group." Which one provides more evidence with regard to cause and effect relationships?

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