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juan francisco zhang

juan francisco z.

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Question content area Part 1 In the aftermath of the global economic crisis that started to take hold in 2008, U.S. government budget deficits increased dramatically, yet interest rates on U.S. Treasury debt fell sharply and stayed low for quite some time. Does this make sense? A. Yes, the decrease in investment opportunities and known risk factors significantly offset the wealth effect on demand and the deficit effect on supply. B. No, the effects of the economic crisis led to significantly lower wealth and income while increasing bond supply even more. This resulted in a decrease in bond prices and an increase in interest rates. C. No, the large federal deficits required the Treasury to issue more bonds; thus, the supply curve for bonds shifted to the right, increasing the equilibrium interest rate. D. Yes, U.S. Treasury debt became a safe haven for investment, which shifted the demand curve for bonds to the right. However, since the government was not able to secure all of its debt, the supply of bonds decreased and the supply curve shifted to the left.

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QUESTION 1: COMPULSORY For a three-phase half-wave rectifier supplying a purely resistive load, a) Draw a circuit diagram. [4 marks] b) Compute, i) The average output voltage [2 marks] ii) The rms value of the output voltage [2 marks] iii) The form factor [2 marks] iv) The ripple factor [2 marks] c) A thyristor half-wave-controlled converter has a supply voltage of 240 V at 50 Hz and a load resistance of \( 100 \Omega \). What are the average values of load voltage and current when firing delay angle is: i) \( 70^{\circ} \) [1 mark] ii) \( 85^{\circ} \) [1 mark] a) A \( 240 \mathrm{~V}, 50 \mathrm{~Hz} \) supply feeds a highly inductive load resistance through a thyristor bridge that is: r Half-controlled > Fully-controlled For each case when the firing angle delay \( \alpha=25^{\circ} \), calculate; i) Load current [2 marks] ii) Power [2 marks] iii) Power factor [2 marks] Total:20 marks

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What are the two types of environmental influences that are investigated by genetics researchers? a. shared and non-shared b. combined and separate c. group and individual d. internal and external

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The slope of a line that passes through two points can be found using the formula: [?] \[ \begin{array}{l} (-2,3) ;(1,5) \\ \begin{array}{llll} \hat{x}_{1} & y_{1} & x_{2} & y_{2} \end{array} \end{array} \] \[ \begin{array}{l} \mathrm{y}_{2}-\mathrm{y}_{1} \\ \mathrm{x}_{2}-\mathrm{x}_{1} \end{array} \]

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If the cost of goods sold is greater than the cost of goods manufactured, then: Question 5 options: work in process inventory has decreased during the period. finished goods inventory has increased during the period. total manufacturing costs must be greater than cost of goods manufactured. finished goods inventory has decreased during the period.

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For the following reaction: SnO (s) + 1 CO (g) ↔ Sn (s) + CO2 (g) Kc = 3.2 x10-2 The initial conditions in the reaction flask are 0.50 M SnO and 0.20 M CO. What will be [CO2] at equilibrium? a) [CO2] = 0.50 M b) [CO2] = 5.4 x10-2 M c) [CO2] = 0.20 M d) [CO2] = 6.2 x 10-3 M

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Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. Drawing Arrows heat

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2. A spring is at rest, hanging from a horizontal bar. A mass of 0.485 kg is hung from the bottom of the spring, which stretches 0.185 m from its zero position to reach equilibrium. What is the spring constant in N/m? Show your work. Refer to Lab 3 if you need help. 3. Using the same spring and mass as in Question 2, the spring is stretched slightly and released, causing it to bob up and down. Below is a graph of the mass's vertical position in meters vs. time in seconds. a. What is the period of this oscillation?

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Determine the area (in units²) of the region by integrating over the x-axis. y = |x| and y = x².

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1. This question deals with PPP and exchange rates conversions. Define the market exchange rate as the foreign currency price for 1 US Dollar e.g. 1 USD=1.27 CAD (Canadian Dollar). (a) Find the exchange rates for various countries listed below. You can use websites such as Yahoo Currency Converter to aid you in your answers. Country Currency Exch Rate Price of BM (XR) in local currency USA USD 1 4.93 China Yuan 22.4 France Euro 4.25 Mexico Peso 54 India Rupees 190 Vietnam VND 60000 BM exch rate (BMXR) 1

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