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catherine allen

catherine a.

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You went for an interview at a Telecom company. Your interviewer asked you to match an antenna with the input impedance of 50-j25 Ohm to a transmission line with the characteristic impedance of 50 Ohm using Smith Chart. First, please mark and label on the Smith Chart: a) the load impedance (antenna), b) the reference impedance (i.e. characteristic impedance of the transmission line), c) open circuit, d) short circuit, e) $Z$=j50 Ohm and f) $Z$=-j50 Ohm. Please also mark on smith chart the matching trajectory and the matching component impedance value that you use to achieve the impedance matching.

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Question 7 The Keynesian expenditure multiplier assumes that each dollar ____ by a household increases the aggregate output of the economy by ____ ? spent; more than one dollar ? spent; one dollar ? saved; less than one dollar ? saved; more than one dollar 1 pts

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1. Carbon dioxide dissolves well in water. This is mainly because a. carbon dioxide is polar b. water molecules are non-polar c. the molecules of a gas are far apart compared to the molecules of a liquid d. water can dissolve anything with carbon

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(4) Evaluate the triple integral of f(x,y,z)=sqrt(x^(2)+z^(2)) over the region determined by the inequalities 0<=y<=1 and x^(2)+z^(2)<=sin^(2)(pi y). (4) Evaluate the triple integral of f(x,y,z) = Vx2 + z2 over the region determined by the inequalities 0 < y < 1 and x2 + z2 sin2 (Ty). 1 2 1 y 1.5 x 0.5 1 -1

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Find all zeros of the function. \(f(x) = 4x^3 - 32x^2 + 85x - 75\) Entry tip: Enter the zeros (exact values, not decimal approximations) separated by commas.

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c. If the half-life of iodine-131 is 8 days, how old is a sample if only ¼ of the original amount remains? Write 2 - 3 sentences explaining your reasoning. (6 points) d. What type of nuclear reaction is shown in the diagram below? Write 2-3 sentences describing what happens in this reaction, where it happens, and how the energy released can be harnessed for use in homes. (8 points) Proton Neutron Before After Question 8: Cosmology (8 points) a. Write 3-4 sentences describing how the universe began and how its size is currently changing, according to the big bang theory. According to the flat model, what will eventually happen to the universe? (4 points)

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Problem #4: What is the price P today of a $90,000 182-day Canadian T-Bill if its quoted yield is 10.81%? Problem #4: Answer correct to 2 decimals.

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Find a geometric power series representation for the function $f(x) = \frac{1}{2 - 4x^2}$ and determine the interval of convergence. $f(x) = \sum_{n=0}^{\infty} (4x^2)^n$ and the interval of convergence is $(-1/2, 1/2)$. $f(x) = \sum_{n=0}^{\infty} 4(x^2)^n$ and the interval of convergence is $(-1, 1)$. $f(x) = \frac{1}{2} \sum_{n=0}^{\infty} (2x^2)^n$ and the interval of convergence is $(-1/4, 1/4)$. $f(x) = \frac{1}{2} \sum_{n=0}^{\infty} (2x^2)^n$ and the interval of convergence is $(-1/\sqrt{2}, 1/\sqrt{2})$.

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15 pts) Find the Fourier series of the triangle function. Triangle function, period=T

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There is a project with the following cash flows: Year Cash Flow 0 -$27,250 1 7,900 2 9,000 3 7,550 4 8,150 5 7,500 What is the payback period? Multiple Choice 3.68 years 3.34 years

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