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concepci-n ugarte

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The Higher Education Research Institute at UCLA collected data from incoming first-time, full-time freshmen from 290 four-year colleges and universities in the U.S. In 2019, 56% of those surveyed strongly agree that addressing global climate change should be a federal priority. Suppose that you randomly pick 7 first-time, full-time freshmen. You are interested in the number of these 7 that strongly agree that addressing global climate change should be a federal priority. a. Identify the parameter n for the binomial experiment. 7 b. Identify the parameter p for the binomial experiment. 0.56 c. Find the probability that fewer than 4 of the 7 strongly agree that addressing global climate change should be a federal priority. Round your answer to 4 decimal places.

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Which of the following statements is correct? Multiple Choice The mother’s stressful life events may have a negative impact on the fetus even if these events occur before conception. Maternal depression during pregnancy may cause preterm birth. Maternal depression during pregnancy may cause low birth weight for full-term infants. All answer choices are correct.

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Two challenges of Supply Chain Management (SCM) are? Question 13 options: Cycle Time Cost Cost and complexity Complexity

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B) Use ortho/meta/para convention (don't forget the hyphen!). F

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3. Place the following steps from transcription in the order that they occur. a. RNA polymerase binds to the group of transcription factors at the promoter b. The RNA transcript is released c. RNA polymerase detaches from DNA d. The DNA double helix unwinds and RNA synthesis begins e. RNA polymerase travels down the DNA template, adding complementary base pairs in the 5' to 3' direction f. RNA polymerase stops adding base pairs when it reaches a certain DNA sequence at the end of the gene 4. Gene transcription occurs from left to right for genes A and B, and transcription occurs from right to left for gene B. Which is the template strand of each gene (top or bottom strand)? a. Gene A b. Gene B c. Gene C 5' 3' Gene A Gene B Gene C 3' 5'

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The ideal Boost converter of Figure 2 operates in discontinuous conduction mode (DCM). $i_d$ $I_L$ $i_n$ 000 $I_o$ $+ V_L -$ $i_c$ C $V_o$ R $V_d$ T (Load) Figure 2 (a) Show that the critical K for DCM operation is given by $\frac{2L}{RT_s} = D(1-D)^2$ where $T_s$ is the switching period (= 1/$f_s$) and D is duty-cycle of the switch T. [5 marks] (b) Show that when the converter operates in DCM, its voltage ratio is given by $\frac{V_o}{V_d} = \frac{1 + \sqrt{1 + \frac{4D^2}{K}}}{2}$ [8 marks] (c) The following are given: $V_d = 24V$; $V_o = 48V$; $P_{omax} = 100W$; $f_s = 100kHz$. Find the value of inductance L which will guarantee operation of the converter in DCM for load up to 100W. [3 marks] (d) The duty cycle D is regulated continuously and automatically in order to maintain the output voltage $V_o$ at 48V. Find the operating duty cycle of the converter when the load is 25W. [4 marks]

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20SP-CPTR-350-01 Data Structures Algorithms(3) Assuming we have the array, short matrix[4..8][7..10][1..8][6..9]; Give the addressing formula assuming row major. If the base address for the matrix is 7000, what is the actual address of matrix[5][9][4][8]? Give the addressing formula assuming column major. Now what is the address of matrix[5][9][4][8]?

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Q4. (a) Draw the energy band diagram of a Si $p-n^+$ junction at 300 K that is doped with $N_A = 10^{14} cm^{-3}$ on the p-side and $N_D = 10^{18} cm^{-3}$ on the n-side. In your band diagram, label $E_F - E_i$ on both sides of the junction. Calculate the reverse bias saturation current density if $\tau_n = 1 \mu s$ and $D_n = 10 cm^2 s^{-1}$. (13 marks) (b) A Si sample at 300 K is known to contain both donors and acceptors. The dimensions of the sample are shown in Figure Q4(b). The voltage that drives the current $I_x$ of 10 mA is $V_x = 5 V$ and $B = 350$ Gauss. It is found that the Hall coefficient is $R_H = -30 cm^3 C^{-1}$. Find the majority and minority carrier densities. Determine the sample's electron mobility. (12 marks) [Total: 25 marks]

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P2.39. Use the current-division principle to calculate the value of $i_3$ in Figure P2.39. $R_1 = 100 \Omega$ 30 mA $R_2 = 25 \Omega$ $R_3 = 50 \Omega$ $i_2$ $i_3$ Figure P2.39

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Use the indicated substitution to evaluate the integral. ∫(4 - 6x^2) dx, x = 2/6 sin(𝜃)

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