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aaron nguyen

aaron n.

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A silicon MOSFET has parameters Na 4 1016 cm3, tox 12 nm 120 Ã…, Qs s 4 1010 cm2, and ms 0.5 V. The transistor is biased at VGS 1.25 V and VSB 0. (a) Calculate L for (i) VDS 1 V, (ii) VDS 2 V, and (iii) VDS 4 V. (b) Determine the minimum channel length L such that LL 0.12 for VGS 1.25 V and VDS 4 V.

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The parasympathetic nervous system is psrt of the somstic nervous system ? True or False

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0.1 < \frac{\sqrt{11} - \sqrt{3}}{\sqrt{33}} < 0.8

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Consider the circuit with the switch open at $t = 0$ and determine $V_{out}(s)$ for $t \ge 0$. Given $i_s(t) = 0.5 \cos(4t)$ A; $R_1 = 1 \Omega$; $R_2 = 0.5 \Omega$; $L = 0.5$ H

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QUESTION 10 A relative need is something one needs sometimes but not other times. True False QUESTION 11 In Rawls's thought experiment, "the veil of ignorance" means: in the new society people don't know about other societies people don't know who will be in control in the new society people don't know their income or gender or race in the new society in the new society women must cover their hair and face QUESTION 12 The first thing people creating a just society would want is liberty. True False

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Consider the system shown below. The controller is given by K(s) and the process model is given by G(s). d(s) r(s) e(s) u(s) y(s) K(s) G(s) y(s) (a) Find the transfer function that maps r(s) to y(s). (b) Find the transfer function that maps d(s) to y(s). (c) Defining the error to be e(s) = r(s) - y(s), find the following transfer functions: i. r(s) to e(s) ii. d(s) to e(s) iii. n(s) to e(s)

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3) In the circuit below the switch closes at time t=0, after being open for infinite amount of time. Find the current that goes through the switch after t=0; i.e. for t>0 (Hint: DONOT use Laplace. Even though the circuit is a second order circuit, you simply need to find the response of two first order circuits)

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1. Simplify the following functions a. $\int_{-\infty}^{\infty} \delta(t+3)dt =$ b. $\int_{-\infty}^{\infty} Acos(\omega_o t + \phi)\delta(t-3)dt =$ c. $\frac{d u(t+1)}{dt} =$ d. $\int_{-\infty}^{\infty} u(t-1)\delta(t+3)dt =$ e. $\int_{-\infty}^{b} \delta(t-2)dt =$ f. $\int_{-\infty}^{1} \delta(t-1)dt = $

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SA Household Finances are in Dire Straits The South African Reserve Bank (SARB) yesterday painted a bleak picture of household finances, saying household expenditure had tanked for the first time in three years. In its quarterly bulletin for June, published yesterday, the central bank said consumption expenditure by households had fallen by 0.8% in the first quarter of 2019 following a 3.2% increase in the fourth quarter of 2018 as the economy wanes. The economy is on a downward spiral with gross domestic product contracting by 3.2% in the first quarter of 2019 – the largest contraction since the first quarter of 2009 when it contracted by 6.1%, at the height of the global financial crisis. The SARB said the deterioration in the household consumption was in line with the decline in consumer confidence in the first quarter of 2019, as measured by the First National Bank/Bureau for Economic Research Consumer Confidence Index. The SARB said consumers' finances had been under pressure due to the prolonged period of weak economic activity, rising unemployment, an increased tax burden, and successive fuel price increases. Growth in the real disposable income of households was weighed down by lackluster employment growth and slower wage growth. 4.2.1 The article states that "the economy is on a downward spiral...first quarter of 2019." Explain which phase of the business cycle this represents. (5) 4.2.2 The article further states that "growth in the real disposable income...and slower wage growth." In terms of this statement, discuss the type of fiscal policy that the government can implement to remedy this situation, paying specific attention in your answer to the tool that needs to be targeted. (5) 4.2.3 Discuss a demand-side policy that can be implemented by the government to reduce unemployment mentioned in the article.

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Use trigonometric identities to transform the left side of the equation into the right side ($0 < \theta < \frac{\pi}{2}$). $(\sec \theta + \tan \theta)(\sec \theta - \tan \theta) = 1$ $(\sec \theta + \tan \theta)(\sec \theta - \tan \theta) = \sec^2 \theta - \text{[_____]}$ $= \frac{1 - \text{[_____]}}{\cos^2 \theta}$ $= \frac{\text{[_____]}}{\cos^2 \theta}$ $= 1$

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