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melinda walton

melinda w.

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1 molar equivalent of $NaBH_4$ can reduce how many molar equivalents of a ketone? 1 2 3 4

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is needed for DNA synthesis, protein metabolism, wound healing, growth, development of reproductive organs, and white blood cell formation. Selenium Zinc Copper lodine

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A species with an initial population of 80 is growing in an environment where the carrying capacity is 1600. After 4 years the population is up to 120. Find the logistic function that models this population as a function of time. \begin{equation*} P = \frac{[?]}{1 + [?]e^{[]t}} \end{equation*}

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Evaluate this triple integral.\\ $\int_0^6 \int_0^{6-x} \int_0^{6-x-y} dzdydx$

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1. Suppose that 10,000 spin 1/2 particles with random spin direction are analyzed by a detector oriented along a direction \hat{n} = \frac{1}{\sqrt{2}}(\hat{x} + \hat{z}). The SPINS program denotes this as 45°. The half that are \"spin up\" in \hat{n} go into an analyzer oriented in the \hat{z}direction. The half that are \"spin down\" in \hat{n} go into an analyzer oriented in the \hat{z}direction: a) What is the quantum state of the \"spin up\" particles leaving the first analyzer (oriented along \hat{n})? Express it in the \hat{z} basis. b) What is the quantum state of the \"spin down\" particles leaving the first analyzer (oriented along \hat{n})? Express it in the \hat{z} basis. c) Use the projection operators (e.g. $|+\rangle_\hat{z}\langle+|\hat{z}$) to determine the quantum states of particles leaving each of the remaining two analyzers. d) Compute the fraction of particles expected at each of the four counters. Is the simulation result shown consistent with theory? Try it for 100,000 particles. Is the result better?

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Av= A certain noninverting amplifier has Ri of 3.5 k$\Omega$ and Rf of 3.6k$\Omega$. The closed-loop voltage gain Av is Calculate the input offset current from the circuit shown below: I$_{B1}$=6.6mA and I$_{B2}$=4.9mA I$_{B1}$ \rightarrow 3 I$_{B2}$ \rightarrow 2 +V$_{cc}$ 7 A -V$_{cc}$ 4 6 [HINT: Do not write unit (only numerical value)] Input offset current =

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Which of the following events occurs in BOTH mitosis and meiosis? Sister chromatids separate and move to opposite poles of the cell Chiasmata form along the lengths of homologous chromosomes Crossing over occurs between homologs There are 2 rounds of cell division, producing 4 cells At the end of cytokinesis, each daughter cell contains half the amount of DNA as each original parent cell

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In an experiment the reported LOC value for n-butane was 12%. Using flammability diagrams for n-butane, how much oxygen concentration must be reduced before putting n-butane into an empty container to avoid fire hazard? LFL butane: 1.8%; Butane UFL: 8.5%

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Three point charges are arranged in a horizontal line as shown below. Find the electric force on Q? given the following: Q? = -5 µC, Q? = 1 µC, Q? = -5 µC, r? = 100 m, and r? = 150 m. Remember that a positive force points to the right and a negative force points to the left. Q? Q? Q? r? r? What is the net force on charge Q?? (in units of N) Submit Answer Tries 0/2 What is the net force on charge Q?? (in units of N) Submit Answer Tries 0/2 What is the net force on charge Q?? (in units of N) Submit Answer Tries 0/2 What is the sum of the forces on all three charges? (in units of N) Submit Answer Tries 0/2

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Assume \cot(\theta) = \frac{19}{7}. Compute the other five trig functions for the angle \theta. \sin(\theta) = \cos(\theta) = \csc(\theta) = \sec(\theta) = \tan(\theta) =

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