Numerade

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The same potential difference is applied across two wires. Wire A has twice the resistance compared to wire B. If the current through wire A is I, what is the current through wire B? A. I B. 2I C. I/2 D. 4I E. I/4

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C) iodine. 8. The number of atoms in a body-centered cubic unit cell is A) 1 B) 2 C) 3 D) 4 E) 8

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The following circuits are called clipping circuits. Assume ideal diodes and sketch the output voltage $V_{out}$ for two cycles of the input $V_{in}$ \\ 1 k$\Omega$ + \\ + \\ (a) $V_{in} = sin(2\pi t)$ + $V_{out}$ \\ 0.5 V \\ 1 k$\Omega$ + \\ + \\ (b) $V_{in} = sin(2\pi t)$ + $V_{out}$ \\ 0.5 V

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Oil and the Dollar Several components of the economy are interrelated. Some economists make predictions when they are able to find out how to determine one value from another. Naturally, these predictions only work if the trends are maintained. The table below shows two economic statistical variables spread over 25 years. Price of Oil and Value of the Canadian Dollar, from 1980 to 2014 Mean Annual Price per Year Barrel of Oil ($US) Mean Annual Value of the Canadian Dollar ($US) 1980 99.11 0.86 1982 71.95 0.77 1984 60.34 0.75 1986 28.70 0.69 1988 27.45 0.72 1990 38.57 0.86 1992 29.90 0.79 1994 23.02 0.73 1996 28.42 0.73 1998 15.93 0.68 2000 34.65 0.67 2002 27.62 0.64 2004 43.42 0.77 2006 63.02 0.88 2008 92.31 0.94 2010 71.57 0.97 2012 86.46 1.00 2014 92.57 0.91 Source: 2000watts.org, 2017 [online] ►a) Determine if the price per barrel of oil influences the value of the Canadian dollar and what effect an increase in the value per barrel of oil has on the Canadian dollar. First state a conjecture and then justify it with mathematical arguments. b) If the price of oil seems to influence the value of the Canadian dollar, what will the mean annual value of the Canadian dollar be (in $US) if the price per barrel of oil reaches an annual mean of US$125? Validate this value.

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where $ \mathrm{M}=\mathrm{O}_{2} $, the rate constant is given by \[ \mathrm{k}=\left(6.0 \times 10^{7} \mathrm{~L}^{2} / \mathrm{mol} \mathrm{s}\right) \exp (2.5 / \mathrm{RT}) \] where the activation energy is in $ \mathrm{Kj} / \mathrm{mol} $. Calculate the values of the parameters in the Arrhenius equation for the reverse reaction assuming $ \Delta \mathrm{H}^{\circ} $ and $ \Delta \mathrm{S}^{\circ} $ are independent of temperature.

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\int_0^3 \frac{4}{5x^2 + 6x + 1} dx

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The nurse is collecting data from a client who is at 32 weeks' gestation. The nurse measures the fundal height in centimeters and expects the findings to be how many centimeters (cm) ? 22cm 28cm 32cm 40cm The nurse is collecting data from a client who is at 32 weeks' gestation. The nurse measures the fundal height in centimeters and expects the findings to be how many centimeters (cm)? 1 22 cm 2. 28 cm 3. 32cm 40 cm

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An increase in the price of tennis racquets from $30 to $40 led to a decrease in quantity demanded from 100 units to 92 units. Calculate the absolute value of the price elasticity of demand using the midpoint formula. Please enter your answer with two decimal places.

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4.57 (a) Derive planar density expressions for FCC (100) and (111) planes in terms of the atomic radius R.

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11.5. Using the log-perd computer program and Appendix IX, design an array which covers the VHF television band. Design the antenna for 7 dBi gain optimized in terms of $\sigma - \tau$. The antenna should be matched to a 75-ohm coaxial input cable. For this problem, set the input line length to 0 meters, the source resistance to 0 ohms, the termination line length to 0 meters, the termination impedance to 100 Kohms, the length-to-diameter ratio to 40, and the boom diameter to 10 cm. To make the actual input impedance 75 ohms, one must iteratively find the optimal desired input impedance. (a) Plot the gain, magnitude of the input impedance, and VSWR versus frequency from 30 MHz to 400 MHz. (b) Based on the ripples in the plot of gain versus frequency, what is $\tau$? Compare this value to the value calculated by the computer program. (c) Why does the gain decrease rapidly for frequencies less than the lower design frequency yet decrease very slowly for frequencies higher than the upper design frequency?

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william m.