Numerade

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A ”fresh” wastewater contains nitrate (NO3), dissolved oxygen (DO) and sulfate (SO4) and is sealed in an airtight container. Why are the compounds used in this order?

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The Hamiltonian of a two level system can be expressed as $H = -\frac{\hbar}{2}\vec{\omega}.\vec{\sigma}$. Consider the following matrix- $H = \frac{\hbar}{2} \begin{bmatrix} -2 & -2+3i \\ -(2+3i) & 2 \end{bmatrix}$ 1(a) Can this matrix represent the Hamiltonian of an ideal two level system?

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Question 10 Provide an appropriate response. A ______ represents a promise of future cash. stock return None of these bond

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What organelles in eukaryotic cells contain their own DNA and possess 70s ribosomes? The golgi apparatus and endosomes The smooth and rough endoplasmic reticulum The nucleus and centrioles Mitochondria and chloroplasts

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In mass spectrometry, the path of ions after deflection depends on... Obboth the charge and the mass of the ion. Oneither the charge nor the mass of the ion. Only the charge on the ion. Only the mass of the ion.

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means including few members of a minority group to create the appearance of representation, inclusion, and non-discrimination, without really giving these members access to power.

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Find the inverse of the given matrix, if it exists. \begin{bmatrix} 1 & -3 & 2 & 0 \\ 0 & 1 & -1 & 1 \\ -3 & 4 & -3 & 3 \\ 0 & 4 & -2 & 1 \end{bmatrix} Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. A. $A^{-1} = \Box$ (Type an integer or simplified fraction for each matrix element.) B. The given matrix has no inverse.

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In the eye of a hurricane, air... a) descends and cloud formation is retarded O b) rises rapidly causing the eye to remain clear c) stagnates and begins to stink d) descends and creates clouds e) No way bub!

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When $r = 0$, we have $u = 1$ and when $r = 4$, we have $u = 65$ Thus, $\int_0^4 \sqrt{1 + 4r^2} r dr = \frac{1}{8} \int_1^{65} u^{1/2} du = \frac{1}{12}(\text{_____})$

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Charge #1 y $-q$ Charge #2 $-q$ x $+q$ Charge #3 Three point charges lie at the vertices of an equilateral triangle as shown in the figure above. All three charges have the same magnitude, and all charges are negative ($-q$). What is the direction of the net electrostatic force that charges #2 and #3 exert on charge #1? +x direction -x direction +y direction -y direction not given

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alyssa k.