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Thermochemistry Using specific heat capacity to find heat Calculate the energy required to heat 120.0 g of iron from $-6.8$ $^\circ C$ to $13.0$ $^\circ C$. Assume the specific heat capacity of iron under these conditions is $0.449$ J g$^{-1}$ K$^{-1}$. Round your answer to 3 significant digits.

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In the Norton vs. Argonaut Insurance Co case, what does the case mean for healthcare today? What were its implications when the decision was announced? How should healthcare administrators prepare to deal with these implications? What would be different today if the case had been decided differently?

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A rectangular prism has dimensions x units, 2x units, and x+8 units. Which expression represents the surface area of the prism? A) 8x+16 square units B) 16x+32 square units C) 10x^(2)+48x square units D) 2x^(3)+16x^(2) square units

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8. (3 Points) Why is it important to have a shock wave at the entrance of a supersonic vehicle engine inlet to prevent destruction of components in high speed flow? 9. (3 Points) Orbital mechanics means you don't get to take direct paths to a destination. If thrust occurs instantaneously, how can you connect trajectory paths to reach a stable, long-period orbits outside of Low Earth Orbit?

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<Homework 07-Deflection in Beams Problem 12.30 Correct Consider the beam shown in (Figure 1). EI is constant. Part B Determine the expression for the elastic curve using the coordinate $x_3$ for $0 \le x_3 \le L - a$. Express your answer in terms of some or all of the variables $x_3$, a, w, E, I, and L. ???vec? $v_2 =$ Submit Previous Answers Request Answer Figure <1 of 1 > Incorrect; Try Again; 27 attempts remaining Part C axis. Determine the slope of the beam at B, measured clockwise from the positive $x_3$ Express your answer in terms of some or all of the variables a, w, E, I, and L. $\theta_B = \frac{wa^3}{6EI}$ Submit Previous Answers ? Correct 2 of 8

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1. The radial wave function for the hydrogen atom in three dimensions is given by \frac{1}{r} \rho^{l+1} e^{-\rho} v(\rho) where $v(\rho) = \sum_{j=0}^{\infty} c_j \rho^j$ is a polynomial of degree $j_{max} = n - l - 1$ in $\rho$ whose coefficients are determined by the recursion formula $c_{j+1} = \frac{2(j + l + 1 - n)}{(j + 1)(j + 2l + 2)} c_j$ (a) For $n = 2$ write down the allowed values of $m_l$ and $j_{max}$. (4) (b) Hence by using the fact that $\rho$ can be defined in terms of the Bohr radius $a$ i.e., $\rho = r/a n$, show that (don't normalize) $R_{20}(r) = \frac{c_0}{2a} (1 - \frac{r}{2a}) e^{-r/2a}$. (4) 2. Write all spherical harmonics up to $l = 2$ (there are nine of them) in Cartesian form, i.e. give expressions in terms of $x, y, z$, and $r$. You can either use the Rodrigues formula for the Legendre polynomials or start with the given expressions for $Y_l^m$ in terms of $\theta$ and $\phi$. In any event you must show your work. (7)

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What are the integrity constraints? Explain them. There are four classes and at least one class. A student can enroll in at most 5 classes and at least 3 classes, and a class can have an enrollment of at least 10 students and at most 25 students. SFNAME SNUM GRADE WUNS CTIME ROOM STUDENT ENROLLS CLASS Teaches PROFESSOR OFFICENO PNQ PLNAME PFNAME a. Name the entities and the relationships in the ERD

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I need help on this one, please. This is done through a multi-effect evaporation (forward-feed quadruple effect evaporator). Given: m = 38,000 lb/br = 0.15 & = 0.75 Enthalpies in (Btu/lb): At 70Â°F, h = 38.074667 Btu/lb At 224.3278309Â°F, Hv = 1154.965710 Btu/lb, hy = 192.640568 Btu/lb At 252.932877Â°F, Hvo = 1165.128474 Btu/lb, hvo = 221.603053 Btu/lb At 188.613850Â°F, Hv = 1141.347609 Btu/lb, hy = 156.686585 Btu/lb At 241.751397Â°F, Hv = 1161.245167 Btu/lb, hv = 210.261099 Btu/lb At 111.425572Â°F, Hv4 = 1109.608414 Btu/lb, hv = 79.441041 Btu/lb Required: Given the values, solve by using a Gauss-Jordan matrix similar to the figure below. Explain the steps. H - h h - H 0 fm.e 0 H + h - 2h ha - H mL 0 H - h H + H - 2h mh - h mh - h So, substituting all values, we get: 945.35962.96 0 922.01 -988.30 0 958.14 1946.44 7360200 -1842750 32147975.45 Figure: Example Matrix

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Let $ \alpha = P \lor Q $ and KB = $ \{ P \lor R, Q \lor \neg R \} $ Is it the case that KB $ \models \alpha $? Justify your answer with your method.

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Problem 4. Consider the same spool considered in a previous problem (mass m = 2 kg, outer radius 3 m, inner drum radius 2 m, centroidal radius of gyration of the spool is kC = 2 m). However, in this case, there is an inextensible cord wrapped around the outside of the spool, which passes over a massless pulley and down to a mass of weight 16 N (mD = 1.631 kg). (a) Assuming that the inner drum of the spool rolls without slip on the ground, find the angular acceleration of the spool just after being released from rest. (b) Find the minimum coefficient of friction between at point A to maintain pure rolling. (c) If the actual coefficient of friction is half the value found in part (b), find the downward acceleration of the mass D just after being released from rest. Ans: (a) ? = 0.9075 rad/s² ccw, (b) ?min = 0.9251, (c) aD = 4.015 m/s² downward.

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inmaculada b.