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Contractionary fiscal policy would most likely be recommended in which of the following situations? Group of answer choices If the economy is in equilibrium beyond the potential level of GDP. An increase in long run aggregate supply beyond the potential level of GDP. A decrease in short run aggregate supply below the potential level of GDP. If the economy is experiencing unemployment at a rate higher than the natural rate.

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A particle described by the wave function $ \psi(x)=b\left(a^{2}-x^{2}\right) $ for $ -a \leq x \leq+a $ and $ \psi(x)=0 $ for $ x \leq-a $ and $ x \geq+a $, where $ a $ and $ b $ are positive real constants. Using the normalisation condition, find $ b $ in terms of a.

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The monthly subscription price for a popular streaming service increases, ceteris paribus. As a result, demand will ______ and quantity demanded will ______ Select one: a. be constant; increase b. be constant; decrease c. increase; be constant d. decrease; be constant e. depend on its determinants; increase

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5. Based on the graph below, would you want to use median or mean if you wanted to make the US population seem relatively YOUNG? Explain. Total US Population by Age and Generation As of 2020 5M 4M Data Driven PERSONS 3M 2M 1M OM GEN-Z 86.40M Born in: 2020 1999 Age: 1 21 MILLENNIALS GEN-X BABY BOOMERS SILENT GEN GREATEST GEN 82.22M 65.13M 68.70M 23.63M 1.75M 1981 1965 1946 1928 1916 39 55 74 92 104

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The text provided does not contain any spelling, typographical, grammatical, OCR, or mathematical errors. It is properly formatted and presented in a clear, coherent manner.

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When inflation is high, money will lose its ability to function as a unit of account. Select one: O True O False

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(a) Find the reduced row echelon form of the matrix $M$. Your answers must be fractions (decimals are not allowed). $M = \begin{bmatrix} -3 & -4 & 1 & -5 \\ 2 & -1 & -5 & 5 \end{bmatrix}$ (b) Solve the matrix equation $\begin{bmatrix} -3 & -4 \\ 2 & -1 \end{bmatrix} X = \begin{bmatrix} 1 & -5 \\ -5 & 5 \end{bmatrix}$ $X = \begin{bmatrix} \\ \\ \end{bmatrix}$

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As in the figure, the long cylindrical slice with inner radius $a$ and outer radius $2a$ has a current density given by $J = J_o \frac{r}{a}$. Where $r$ is the radial distance from the axis of the cylinder. If the current flowing in the $z$ direction is $I = 2$ (A) and $a = 2$ (m), what is the constant $J_o$ in $\frac{4}{\pi a^2}$? ($\pi = 3$) A) $\frac{1}{20}$ B) $\frac{1}{8}$ C) $\frac{1}{7}$ D) $\frac{1}{21}$ E) $\frac{3}{7}$

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Texts: Let T1(x1, x2, x3) = (x1 + x2, x1 - 2x2) and T2(x1, x2) = (3x1, x1 + 4x2). (a) Find the standard matrix for T1 and T2. (b) Find the standard matrix for T1 o T2 and T o T1. (c) Use the matrices obtained in part (b) to find formulas for T1(T2(1, x2)) and T2(T1(1, x2, x3)).

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A block-spring system consists of a spring with constant $k = 415 \text{ N/m}$ attached to a 1.25 kg block on a frictionless surface. The block is pulled 8.80 cm from equilibrium and released from rest. For the resulting oscillation, find the amplitude, angular frequency, frequency, and period. What is the maximum value of the block's velocity and acceleration?

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diego m.