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tyler lerma

tyler l.

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Select the characteristics of the Linnaean classification system. Multiple select question. accounted for evolutionary relationships polynomials hierarchical system of taxonomy binomial names

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type your answer... is the photosynthetic pigment contained in the thylakoid membrane that absorbs light energy.

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Determine the [OH-] concentration of a 0.666 M KOH solution at 25°C.

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Fill in the blanks with the terms provided. Not all terms will be used. Mechanical stress occurs in the form of weight-bearing movement and exercise , and it is required for normal bone remodeling Stress is detected by (Click to select) and communicated to (Click to select) These cells then (Click to select) synthesis of osteoid, and this is followed by (Click to select) of mineral salts. Bone strength increases over a period of time in response to mechanical stress.

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Question 7 2 pts Consider two countries that trade with each other. The degree of specialization according to their respective comparative advantages will be greater if the countries face: ?low unemployment rates. ?increasing costs. ?high tariffs. ?constant costs.

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1). Derive the equations for discharging a water tank. Use: H = 2 m, As = 1 m², \\ $\rho_{water}$ = 1000 kg/m³, K = 0.5 kg s?¹ m?¹/² Mass flow in = 0 and mass flow out \\ given by, \\ Mass flow out = K $z^{1/2}$. Calculate in the previous problem how long will it \\ take to discharge half a tank.\\ 2). Derive the equations for charging a water tank. Use: H = 2 m, As = 1 m², \\ $\rho_{water}$ = 1000 kg/m³, K = 2000 kg hr?² Mass flow in = K t. Calculate in the \\ previous problem how long will it take to charge completely the tank.\\ 3). A full tank (3 m height) discharges water from an output pipe following the \\ equation: \\ $W_{out}$ = K $z^{1/3}$. Calculate the time required to reduce the level to 1 m. \\ Data: As = 1 m², K = 0.2777 kg /(s m¹/²), $\rho_{water}$ = 1000 kg/m³

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$\qquad v_{in}(t) = 5\cos(2\pi ft) V$ Perform a frequency shift from $f = 10 Hz$ to $f = 100 kHz$ with 500 points per decade. Plot the magnitude and phase responses of $V_c(j\omega)$.

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1. [20 pts.] Suppose X is a random variable having PMF with parameter \theta > 0 given by \begin{tabular}{c|cccc} $x$ & 1 & 2 & 3 & 4 \\ \hline $f(x)$ & $\frac{1}{2+2\theta}$ & $\frac{1}{2+2\theta}$ & $\frac{\theta}{2+2\theta}$ & $\frac{\theta}{2+2\theta}$ \\ \end{tabular} In this problem simplify your answers so they do not leave undone a sum over the points in the sample space. (a) Calculate $E_{\theta}(X)$. (b) Calculate $E_{\theta}(X^2)$. (c) Calculate $var_{\theta}(X)$.

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Given the following system: (1) A \rightarrow R; \quad r_R = k_1 C_A (2) A \rightarrow R; \quad r_S = k_2 C_A C_R A feed ($C_{A0} = 1.5$, $C_{R0} = 0$, $C_{S0} = 0.45$) enters two CSTRs in series ($\tau_1 = 3.75$ min, $\tau_2 = 15$ min). The composition exiting the first CSTR was found to be: $C_{A1} = 0.6$, $C_{R1} = 0.3$, $C_{S1} = 1.05$ Determine the composition leaving the second reactor, for an isothermal system. Please upload your work.

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5) A chemist will mix an 8% solution with a 24% solution to make 140 ounces of a 12% acid solution. How many ounces of each solution should be mixed to get the desired solution?

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