Numerade

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Find the exact function value. $$ \tan \frac{3\pi}{4} = \Box $$ (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)

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Consider 1.5 lb of a mixture having an analysis on a mass basis of 30% N2, 40% CO2, 30% O2 that is compressed adiabatically from 1 atm, 540°R to 5 atm, 1000°R. Step 1 Your Answer Correct Answer Your answer is correct. Determine the magnitude of the work of the compression process, in Btu. $W = 122$ Btu Hint Solution Attempts: 4 of 4 used Step 2 * Your answer is incorrect. Determine the amount of entropy produced, in Btu/°R. $\sigma = i .069$ Btu/°R

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The circuit shown to the right has three branches. Find the currents in each branch. 5 V 6$\Omega$ 12 $\Omega$ 10 $\Omega$ 3 V 9 $\Omega$

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Conditions of participation are: Required by facilities wishing to participate in Medicaid Required by facilities wishing to participate in Medicare Set by federal law All of the above

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We find the "steepness," or slope, of a line passing through two points by dividing the difference in the Select -coordinates of these points by the difference in the -Select-coordinates. So the line passing through the points (0, 4) and (3, 19) has slope

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EX: A dc machine has a rated terminal voltage of 250V and a rated (full-load) armature current of 100 A. Its armature-circuit resistance (i.e., armature winding resistance plus commutating field resistance) is 0.100.\u03a9. Its shunt-field winding has a 1000\u03a9 resistance and 1000 turns per pole. The total brush-contact voltage drop is 2V and the demagnetization of the d-axis by armature mmf is neglected. The magnetization curve data of the dc machine for the rated speed $n_{mc}$ of 1200 rpm is tabulated in Table. Assume that the machine is operated as a separately excited (dc) shunt generator and is driven at a constant speed of 1200 rev/min. (a) Determine the values of the terminal voltage at no load and full load as the field current is set at 1.0, 1.5, and then 2.5 A, separately. (b) Plot the found values of the terminal voltage $V_t$ versus the armature current $I_a$. (c) Determine the percent voltage regulation at each field current setting The Magnetization Curve Data for $n_{me}$ = 1200 rpm $E_{a(mc)}$ (V) 70 140 195 235 260 276 $I_f$ (A) 0.5 1.0 1.5 2.0 2.5 3.0

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Find the area of the region that lies inside the circle $r = 3\sin\theta$ and outside the cardioid $r = 1 + \sin\theta$.

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The molar mass of PbCO3 is 267.2 g/mol. Therefore, the mass of PbCO3 that contains 6.6x10^3 kg of lead is 2.47x10^4 kg.

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An individual has the following utility function: U(y, l) = (y - 100)(l - 80). This implies that MUt = y - 100 and MUy = l - 80. There are 120 hours that can be divided between working for pay and leisure. Working yields hourly wages of $20. Non-labor income is $700.

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Problem 2 - Equilibrium & Stability Each homogeneous bar is of mass m and length L. The spring is unstretched when $\alpha = 0^\circ$ and is guided vertically by a frictionless channel as pictured below. If $mg = kL$, determine: 1. The value of $\alpha$ in the range $0^\circ < \alpha < 90^\circ$ for which the system is in equilibrium. 2. Is the equilibrium position you just found is stable or unstable?

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