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james jones

james j.

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Identify the different functional groups in the following molecules: H2 C H?C—O—C—CH2 Functional group: alkene, ether H2C O H3C—C—CH2 Functional group: ether H2 C H2C—C—C—OH H Functional group: alcohol, alkene CH3 OH H3C—C—CH3 Functional group: alcohol, alkene

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Evaluate the integral.\\ $\int \cos^3(6x)dx$\\ $\int \cos^3(6x)dx = $

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Find the differential of the function. $H = x^3y^9 + y^8z^7$

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2. For the indicated atoms, identify the hybridization (H), electronic geometry (EG), and molecular geometry (MG).

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Answer the following critical thinking questions: 1. Go online and find the latitude of your geographic area. Do you live in a region where your body can synthesize vitamin D from sunlight all year long or only from late spring to early fall? In mid-summer how much sun exposure would you need per week to synthesize adequate vitamin d? 2. Do you think you would benefit from vitamin D supplementation? Why or why not? 3. Would you prefer to try to increase your circulating levels of vitamin D through natural foods, fortified foods, supplements, or increased sun exposure? State your reasoning

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Which of the following is NOT true of “Indian Policy” in the Early Republic? a. It was established under the first President, George Washington. b. It encouraged removal over annihilation. c. It allowed the states to manage their own jurisdiction regarding Indian Policy. d. It was relatively effective at keeping peace.

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1. (25 points) Find the moment of each force about point O. The magnitude of each force =last two digits in your ID. F1 3 4 5 F2 1 m 30° 1m F3 2 m F4 2. (25 points) Replace the force system in problem 1 by an equivalent resultant force and couple moment acting at point O. (Hint: you can use some result from problem 1)

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Find the Laplace transform, F(s), for each f(t) below for t?0 in problems 1) and 2). Express F(s) as a ratio of polynomials in s where the denominator polynomial is monic. I.e., it has the value \"1\" (one) as the leading coefficient on the highest power of s. Your answer to each part must be in the following form: \frac{b_ms^m + b_{m-1}s^{m-1} + \dots + b_1s + b_0}{s^n + a_{n-1}s^{n-1} + \dots + a_1s + a_0} 1) f(t) = ae^{-bt}cos\left(ct + \frac{\pi}{d}\right) 2) f(t) = a\delta(t) + bt^2e^{-ct}

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vi. Using high frequency pi-model, find the ratio y/v, for a common emitter amplifier with the following parameters: Ic=2mA, V=100V, R=10kΩ, RL=5kΩ vii. In the low frequency response of a common emitter amplifier, explain the concept of frequencies p1, p2, and pi using their equations. How can the overall corner frequency of a common emitter amplifier be calculated using p1, p2, and p3? viii. For a certain common emitter amplifier, the low corner frequency is 100 Hz. Find the capacitance of coupling capacitors Cci, Cc, and CE, if the rest of the parameters are as follows: R=100kΩ, Rc=8kΩ, RL=5kΩ, Rsig=15kΩ, β=100, Ic=2mA, r=2.5kΩ, f1=100Hz, f2=10Hz, f3=80Hz. ix. Explain the concept of unity gain bandwidth and cut-off frequency with respect to current gain. Why can't the cut-off frequency be calculated for a MOSFET? x. Using the high frequency pi-model for a common source amplifier, find the value of ygs/Y'sig, if the remaining parameters of the circuit are as follows: Corner frequency = 100MHz, frequency of operation = 50MHz, R=80kΩ, Rig=20kΩ

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You already know that the COVID-19 pandemic has hit the economy of many countries in the world, both from the demand side and from the supply side (production). According to your understanding, how does the impact of the COVID-19 pandemic affect both the demand and supply side?

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