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jennifer johnson

jennifer j.

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10 of 15 For which of these is there an increase in entropy? H$_2$O(l)+CO$_2$(g)$\rightarrow$H$_2$CO$_3$(aq) 2Na$_3$PO$_4$(aq)+3CaCl$_2$(aq)$\rightarrow$6NaCl(aq)+Ca$_3$(PO$_4$)$_2$(s) Ba(OH)$_2$(s)+2NH$_4$Cl(s)$\rightarrow$BaCl$_2$(aq)+2NH$_3$(g)+2H$_2$O(l) H$_2$O(g)$\rightarrow$H$_2$O(s)

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Measurement and Matter Interconverting compound SI units Convert the following measurement. \[ 9.6 \times 10^{-8} \frac{\mathrm{~kg} \cdot \mathrm{~m}^{2}}{\mathrm{~s}^{2}}=\prod \frac{\mathrm{g} \cdot \mathrm{~cm}^{2}}{\mathrm{~s}^{2}} \] Explanation Check

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Bulgaria is a country assumed \"small\" in the strawberry market. It has the below domestic demand and supply equations: $S = 60 - 7P$ $D = 3000 - P$ The price of strawberries in the rest of the world is $340 per kilogram. 1) How much strawberries will Bulgaria export to the rest of the world in free trade? 2) Bulgaria introduces an export subsidy at $50 per kilogram of strawberries. Compute: a) The new price of strawberries in the rest of the world b) The quantity of strawberries Bulgaria will export at this subsidy rate c) The new price of strawberries in the rest of the world d) Draw the export supply and import demand diagram depicting the equilibrium conditions before and after the subsidy. e) The quantity of strawberries demanded in Bulgaria at the subsidy-ridden price f) The quantity of strawberries supplied by Bulgaria at the subsidy-ridden price

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Calculate the pH of a solution that is 0.200 M in NH3 (Ka for NH4+ = 5.70 x 10-10).

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Choose ALL statements that are correct regarding this molecule shown below. Choose wisely as marks are deducted for INCORRECT answers. 0 HO-P-O-P-O-P-O OH OH OH NH2 One adenine (nitrogenous base) Three phosphate groups OH OH One ribose sugar the repeated contraction and relaxation of muscle cells requires adequate amounts of this molecule breaking the phosphate to phosphate bond with this molecule releases energy cells will die if this molecule is absent cells utilize this molecule to transport substances (or ions) across the plasma membrane

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e. Suitch. 29.4 Draw a simple circuit diegram to illustrate how she should set up the apparatus in order to 29.5 Describe in point form how she should go about doing her investigation and what readings she should take at each step. The following results were recorded in her investigation: No. of resistors in parallel Current strength (A) \begin{tabular}{l|l} \hline 2 & 0,40 \\ \hline 3 & 0,55 \\ \hline 4 & 0,80 \end{tabular} 29.6 Plot a graph of 'current strength' versus 'number of resistors in parallel'. 29.7 What can you deduce from the shape of the graph about the relationship between the number of parallel resistors and the current strength in the circuit?

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ACTIVITY 3 1. Which of these two investments will yield the highest return if R10 000 is invested at simple interest? Show your calculations. Start vour answer here I Tabulate \begin{tabular}{|l|l|l|} Deposit period (12 months) & \( \begin{array}{l}\text { Interest rate if the interest is paid } \\ \text { monthly }(10.2 \%)\end{array} \) & \( \begin{array}{l}\text { Interest rate if interest is } \\ \text { paid at the end of the period } \\ (10.65 \%)\end{array} \) \\ \hline \end{tabular}

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Find the first three nonzero terms of the Taylor expansion for the given function and value of a. cos x $a = \frac{\pi}{3}$ ? $1 - \frac{1}{2!}(x - \frac{\pi}{3})^2 + \frac{1}{3!}(x - \frac{\pi}{3})^3 ...$ ? $\frac{1}{2}[1 - \sqrt{3}(x - \frac{\pi}{3}) - \frac{1}{2}(x - \frac{\pi}{3})^2 + ...$ ? $1 - \sqrt{3}(x - \frac{\pi}{3}) - \frac{1}{2}(x - \frac{\pi}{3})^2 + ...$ ? $(x - \frac{\pi}{3}) - \frac{1}{2!}(x - \frac{\pi}{3})^2 + \frac{1}{3!}(x - \frac{\pi}{3})^3 ...$

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6- (10 points) Active Notch filter d) Design an Active Notch filter that has $\omega_0 = 20$ k rad/sec, $K = 5$ and $Q = 10$. Use $R = R_i = 10k \Omega$. e) Verify your design using Matlab to plot the frequency response of the filter. Plot the magnitude in dBs and the phase in degrees. f) Use MultiSim to obtain the Bode Plot of the filter (magnitude and phase), get screen shots of your results.

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Identify the strategies that you already do on a regular basis to reduce stress in your life, and the ones you intend to make a part of your regular routine. Discuss which strategies are most relevant to your life and explain why

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