Numerade

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a miller integrator incorporates an ideal op amp, a resistor of 10 kiloohms, and a capacitor of 1 nF. A sine wave is applied to its input. At what frequencies are the input and output signals equal in amplitude?

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What is the selling price of a dining room set at Macy’s? Assume actual cost is $700 and 42% markup on selling price

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This person must appoint or make recommendations to departments, boards, and commissions

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For the polynomial below, -1 is a zero. $f(x) = x^3 - 5x^2 + x + 7$ Express $f(x)$ as a product of linear factors.

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2. If $a, b \in \mathbb{R}$, show that $|a + b| = |a| + |b|$ if and only if $ab \ge 0$.

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QUESTION 7 Provide an appropriate repones. The test scores of 40 students are summarized in the frequency distribution below. Find the standard deviation. Score Students 50-under 60 6 60-under 70 10 70-under 80 6 80-under 90 5 90-under 100 13 14.3 13.6 15.1 15.9

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A silicon layer is doped with phosphorus where the impurity concentration is $10^{18}/cm^3$. 1) What is the type of the doped silicon? 2) Calculate the concentration of the holes and electrons at: a. 30°C b. 100°C 3) Find the resistivity of the layer at 30°C considering $\mu_n = 360 cm^2/v.s$ and $\mu_p = 150 cm^2/v.s$

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2. The signal given below has specific characteristics: y(t) = 13 + 26 \cos(120t) + 39 \cos(360t) (a)identify the frequencies, in Hz, present (b) the smallest sampling frequency needed to avoid aliasing (c) the smallest sampling frequency needed to avoid amplitude leakage (d) the frequency resolution in the frequency spectrum over 5 seconds when sampled as in (b). (e) if the signal is sampled at 35 samples/sec, identify any alias frequencies present.

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2.2. Rectangle ABCD is scribed on the surface of a member prior to loading (Fig. P2.2). Following the application of the load, the displacement field is expressed by $u = c(2x + y^2)$, $v = c(x^2 - 3y^2)$ Figure P2.2.

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38. What is the molar solubility of Ag$_3$PO$_4$ in pure water? a) 8.89 \times 10$^{-17}$ mol L$^{-1}$ b) 9.43 \times 10$^{-9}$ mol L$^{-1}$ c) 4.26 \times 10$^{-5}$ mol L$^{-1}$ d) 1.16 \times 10$^{-2}$ mol L$^{-1}$ e) 8.08 \times 10$^{-2}$ mol L$^{-1}$ 39. What is the molar solubility of Mg(OH)$_2$ in water that is buffered at pH 11.00? (Assume the only common ion effect is with the hydroxide ion.) a) 2.1 \times 10$^{-10}$ mol L$^{-1}$ b) 2.1 \times 10$^{-7}$ mol L$^{-1}$ c) 3.7 \times 10$^{-5}$ mol L$^{-1}$ d) 2.7 \times 10$^{-4}$ mol L$^{-1}$ e) 3.7 \times 10$^{-1}$ mol L$^{-1}$ 40. The concentration of magnesium ions in seawater is 0.059 mol L$^{-1}$. What is the lowest pH at which Mg(OH)$_2$ will begin to precipitate? a) 2.54 b) 5.73 c) 6.23 d) 7.77 e) 8.27

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