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larry brown

larry b.

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QUESTION 4 (a) Suppose an LTIC system has an impulse response h(t) and input impulse-train signal x(t)=\delta _(T_(0))(t)=\sum_(n=-\infty )^(\infty ) \delta (t-nT_(0)) depicted in Figure Q4(a), respectively. (i) Given that the convolution of m(t) and g(t) is by definition of the form m(t)**g(t)=\int_(-\infty )^(\infty ) m(\tau )g(t-\tau )d\tau , show that \delta (t-T_(0))**g(t)=g(t-T_(0)). [4 Marks] (ii) Hence, use the result in (i) to determine and sketch y(t)=x(t)**h(t) for T_(0)=3 with respect to Figure Q4(a). [6 Marks] (b) For the LTIC system depicted in Figure Q4(b), use time domain analysis to determine the response voltage v(t) for 0<=t<\infty , given that the initial energy is zero. [10 Marks]

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A differential equation is given. Classify it as an ordinary differential equation (ODE) or a partial differential equation (PDE), give the order, and indicate the independent and dependent variables. If the equation is an ordinary differential equation, indicate whether the equation is linear or nonlinear. StartFraction dy Over dx EndFraction equals StartFraction y left parenthesis 3 minus 10 x right parenthesis Over x left parenthesis 3 minus 10 y right parenthesis EndFractiondydx=y(3−10x)x(3−10y) (competition between two species, ecology)

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Charles Martel was: ? An effective military leader ? Father of Pepin the Short ? Grandfather of Charlemagne ? All of the above

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The physician orders Methergine 0.3 mg IM for postpartum bleeding The medication is supplied in 0.2 mg/mL How many MLS will the nurse administer?

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From the following data, C( diamond )+O_(2)(g)->CO_(2)(g),Delta H_(rxn )deg =-395.4(kJ)/(mol) H_(2)(g)+(1)/(2)O_(2)(g)->H_(2)O(l),Delta H_(r imes n)deg =-285.8(kJ)/(mol) CH_(4)(g)+2O_(2)(g)->CO_(2)(g)+2H_(2)O(l),Delta H_(rxn)deg =-890.4(kJ)/(mol) Calculate the enthalpy change for the reaction below: C( diamond) +2H_(2)(g)->CH_(4)(g) Be sure your answer has the correct number of significant digits. kJ â—» imes 10 From the following data kJ H=-395.4 rX. mol kJ H =-285.8 xn mol kJ H.... =-890.4 rxn mol C(diamond)+ O(g)- CO(g) CH(g)+2O(g)- CO(g)+2HO(l) Calculate the enthalpy change for the reaction below: C(diamond)+ 2H(g)- CH4(g) Be sure your answer has the correct number of significant digits kJ 00 X

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8. Which raw material mentioned below is not used in the production of tetraethyl-lead? a) Grignard reagent b) Ethyl chloride c) Lead metal d) Ethyl alcohol

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2- A transmission line \( 1000 \mathrm{~km} \), long is initially under steady state conditions with potential 1300 volts at sending end \( (x=0) \) and 1200 volts at the receiving end \( (x=1000) \). The terminal end of the line is suddenly grounded, but the potential at the source is kept at 1300 volts. Assuming the inductance and leakegance to be negligible, find the potential \( V(x, t) \).

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1\quad O_6\quad 6 \quad A 2 45^\circ O_2 1 FIGURE 2.61 6 D O_2A = 2 in. \quad (50.8 mm) AB = 4 in. \quad (102 mm) AC = 8 in. \quad (203 mm) BD = 4 in. \quad (102 mm) O_6D = 4 in. \quad (102 mm) 5 O_2O_6 = 4 in. \quad (102 mm) 3 B C \quad 4 1

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Consider the case of a two-year discount bond which pays no coupon and pays its face value after two years rather than one year. Suppose the face value of the bond is $1,000 and the price is $870. What is the bond's yield to maturity? Provide a numerical answer along with the equations and math that you used to answer this question. HINT: to solve (1+x)^2 = y x = y^(1/2) - 1 Here is an online square root calculator: http://www.math.com/students/calculators/source/square-root.htm

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I need help with these questions. What's the chemical formula for aluminum sulfide? Al2S3 How many nitrogen atoms are in (NH4)3PO4? 12

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