Numerade

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Assuming a 300-MHz instrument is used, calculate the difference between the frequency of absorption (in hertz) of TMS and the frequency of absorption of a proton with a & value of 1.2 ppm. Of the following, which correctly determines the observed shift from TMS (in Hz)? 0(1.2 × 10-6) × (300 × 10° Hz) = 360 Hz (1.2 × 105) x (300 × 10-6 Hz) = 360 Hz (300 × 10-6 Hz) ÷ (1.2 × 10-6) = 250 Hz (300 × 10° Hz) ÷ (1.2 × 109) = 250 Hz

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When there is a price ceiling, the DWL occurs because the quantity supplied falls below what it would have been under the free market. True False

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a) Let $Y_1, Y_2, Y_3, ..., Y_n$ be independent and identically distributed normal random variables with $N(\mu, \sigma^2)$, where $\sigma^2$ is known. Show that the sample mean $\bar{Y}$ is a sufficient statistic for $\mu$ using conditional approach. (10)

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A uniform 1.4m, 18 kg beam hinged at point P on a wall is held horizontally by a vertical string

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PROBLEM 5: LEAST SQUARES We want to project $b = (0, 8, 8, 20)$ onto the line through $a = (1, 1, 1, 1)$. 1. Find $\hat{x} = \frac{a^T b}{a^T a}$ and the projection $p = \hat{x}a$ 2. Check that $e = b - p$ is perpendicular to $a$ 3. Find the shortest distance $||e||$ from $b$ to the line through $a$. 4. We want to find $\hat{x}$ by minimizing $||e||^2$ with $p = ax$. Minimize the function $E(x) = x^2 + 2(x - 8)^2 + (x - 20)^2$, to find the same $\hat{x}$

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A nurse practitioner prepares an injection of promethazine, an antihistamine used to treat allergic rhinitis. If the stock bottle is labeled 15m(g)/(m)L and the order is a dose of 15.0mg, how many milliliters will the nurse draw up in the syringe? Express the volume in milliliters to two significant figures. mL A nurse practitioner prepares an injection of promethazine, an antihistamine used to treat allergic rhinitis. If the stock bottle is labeled 15 mg/mI and the order is a dose of 15.0 mg,how many milliliters will the nurse draw up in the syringe? Express the volume in milliliters to two significant figures. A2? ? mL

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Which of the following accurately describes the technique of fluorescence recovery after photobleaching (FRAP)? i. Molecules in a membrane are linked with a dye, a small region of the membrane is bleached with a laser, and diffusion of unbleached molecules into the region is measured ii. Molecules in a membrane are bleached, a small region of the membrane is linked with a dye using a laser, and diffusion of bleached molecules into the region is measured iii. It measures the activity of the enzyme flippase iv. It is limited in that the diffusion of some proteins may be inhibited by protein-protein interactions Question 17 options: i and iv ii and iv i and iii ii, iii, iv

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Find a unit vector that is orthogonal to both \textbf{u} and \textbf{v}. \textbf{u} = (-8, -6, 4) \textbf{v} = (10, -12, -2) \left(\frac{4}{\sqrt{94}}, \frac{6}{\sqrt{94}}, \frac{2}{\sqrt{94}}\right)

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Texts: Q1) Write 1 line of MIPS Assembly code so that: $s2 = 192 (decimal) Answer: li $s2, 192 Q2) Write 1 line of assembly code in front of each comment (comment is the instruction): Answer: addi $s2, $zero, 118 # $s2 = 118 (decimal) and $s2, $s2, 0xecba # Do $s2 = $s2 and 0xecba # result of the last instruction: $s2 = _________ (hexadecimal) Q3) Write 1 line of assembly code in front of each comment: Answer: li $s1, 0x2179 # $s1 = 0x2179 (hexadecimal) or $s1, $s1, 0x3bcd # Do $s1 = $s1 or 0x3bcd # result of the last instruction: $s1 = 0x________ (hexadecimal)

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At T=0K find the average number of hits of electrons to wall (per unit surface and per unit time) of the vessel volume V containing N electrons. The electron mass \textit{m} is given.

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jose l.