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ronald barber-

ronald b.

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Find the bias point of the transistor (Si BJTs with $\beta$ = 200 and $V_A \rightarrow \infty$). Note that the value of the capacitor is 4.7 uF. $V_i$ 4.7 uF 15 V 34k 1k $V_o$ 5.9k 270 240 4.7 uF Hint: Consider what happens to a capacitor in a DC circuit after a brief period. How does it behave once the circuit reaches a steady state?

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You are provided x[n] and h[n], which are defined as x[n] = δ[n − 1] + δ[n − 2] and h[n] = δ[n] − δ[n − 1] (a) Draw the input, impulse response and output of the system. (b) Calculate the frequency response of x[n], h[n], and y[n]. (c) Draw the magnitude of the frequency response of x[n], h[n], and y[n]. (d) Discuss their relationship between the time domain and frequency. (e) Discuss how the frequency response of the h[n] can infer how the filter is altering x[n].

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1-24. The proper mean lifetime of \( \pi \) mesons (pions) is \( 2.6 \times 10^{-8} \mathrm{~s} \). Suppose a beam of such particles has speed \( 0.9 c \). (a) What would their mean life be as measured in the laboratory? (b) How far would they travel (on the average) before they decay? (c) What would your answer be to part \( (b) \) if you neglected time dilation? \( (d) \) What is the interval in spacetime between creation of a typical pion and its decay?

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27. $\int_{-\infty}^{\infty} \frac{1}{81x^2 + 25} dx$

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For the following data, b is -0.69 and a is 12.40. Given this information, if a child were 8 years old, how many gifts would we predict they will receive? (In this case, go ahead and round to the nearest whole number.) Age of Child (x) 2 14 Amount of Birthday Gifts they Received (y) 12 8 3

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Suck-It Sucker Company bought a new sucker making machine for $45,000. It has a salvage value of \$5,000, and the company expects that the machine will be able to produce 120,000 suckers before being replaced. During its first year, the machine made 25,000 suckers. Record the first year depreciation using the units-of-production method.

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In the Periodic Table below, shade all the elements for which the neutral atom has a half-filled $p$ subshell. H Li Be Na Mg He B C N O F Ne Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn

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2.- Realiza las siguientes operaciones \( \quad \) ACTIVIDAD 3 a) \( (8) \times(-9)= \) e) \( 12 \times(-5)= \) i) \( 13 \times 0= \) b) \( (-12) \times(-5)= \) f) \( -6 \times(9)= \) j) \( 4.5 \times(-2.9)= \) c) \( (-3) \times(-9)= \) g) \( -14 \times(10)= \) k) \( 0.32 \times(-2.4)= \) d) \( (4) \times(5)= \) h) \( -5 \times(-18)= \) I) \( -0.5 \times-0.14= \) 3.- Escribe los resultados ACTIVIDAD 4 \begin{tabular}{l|l|l} \hline \( 5(-20)= \) & \( 0.5(-5)= \) & \( (-12) \times(8)= \) \\ \hline\( -7(7)= \) & \( -2(9)= \) & \( -8 \times-4= \) \\ \hline \( 0(-4)= \) & \( -5.4(0)= \) & \( (-35)(4)= \) \\ \hline\( -17(4)= \) & \( 13(-6)= \) & \( (-5)(-4)= \) \\ \hline\( -4(-6)= \) & \( (5) \times(-8)= \) & \( (9)(-2)= \) \\ \hline \( 10(-8)= \) & \( (-3) \times(0)= \) & \( (2)(-4)(-5)= \) \\ \hline \( 3.5(-2)= \) & \( (-3.5) \times(9)= \) & \( (-5)(0)(-6)= \) \\ \hline \end{tabular}

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Prove the following without truth tables or venn diagrams using only rules of inference/laws of logic. Use a table proof as done in class. 1. $(\neg p \lor \neg q) \to (s \land r)$ Given 2. $\neg s \lor t$ Given 3. $\neg t$ Given .. $p$

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A rectangular box is to have a square base and a volume of 10 ft$^3$. The material for the base costs 29 cents/ft$^2$, the material for the top costs 23 cents/ft$^2$, and the material for the sides costs 18 cents/ft$^2$. If $x$ denotes the length of one side of the base (in feet), find a function in the variable $x$ giving the total cost of materials used in constructing the box in cents. $\bigcirc \ 52x^2 + \frac{720}{x}$ $\bigcirc \ 52x^2 + \frac{180}{x}$ $\bigcirc \ 52x^2 + \frac{180}{x^2}$ $\bigcirc \ 52x^2 + \frac{72}{x}$ $\bigcirc \ 52x^2 + \frac{720}{x^2}$ What is the domain of the function? $\bigcirc \ (0, 10)$ $\bigcirc \ (1, 10)$ $\bigcirc \ (-\infty, 0) \cup \ (0, \infty)$ $\bigcirc \ (0, \infty)$ $\bigcirc \ (-\infty, \infty)$

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