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larry collins

larry c.

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A liquid extracted from petroleum contains \( 92.3 \% \) carbon, the rest being hydrogen. Its molar mass is around \( 80 \mathrm{~g} / \mathrm{mol} \). Determine the empirical formula and molecular formula of the liquid. empirical formula: \( \square \) molecular formula: \( \square \)

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Question 2 (4 points) The presenters of "This American War on Drugs" encourage listeners to 'consider the source' when consuming information regarding drugs and addiction- especially when it's from a law enforcement source. Why do you think this is? How do you think Big Pharma plays into this phenomenon?

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Phenol is used as a disinfectant. Calculate the pH of a 0.10 M solution of phenol? (Ka for phenol (C6H5OH) is 1.0 \times 10–10)

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Question.5 You are an Industrial Engineering Technician from the Tshwane Metro Police, Your manager has asked you to determine the most desirable time settings for a series of three traffic signals on a 2-kilometer strip of access road to an in-town throughway system. The data collected is depicted in the table below: Boundaries Midpoint Frequency 15.5-18.5 17 12 18.5-21.5 20 18 21.5-24.5 23 10 24.5-27.5 26 13 27.5-30.5 29 20 30.5-33.5 32 8 33.5-36.5 35 2 36.5-39.5 38 1 After devising a timing system, the technician observed the number of vehicles going through all three signals without stopping or rushing a yellow signal. The table above presents the results in cell format: Determine the: a) Average; b) 3 Standard deviation; and c) Variance for the data. d) Assuming normality for the distribution determine the percentage of cars going through the signals during the 22$^{nd}$ and 29$^{th}$ time settings. (2) (2) (2) (4) [10]

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2. Show graphically and explain why polluters (smokers, plants, mills, etc.) under the current market setting have an incentive to overproduce/overconsume the products. Explain in words why the equilibrium outcome is not socially 'efficient' when social spillovers in production and/or consumption exist. Basically explain 'externalities' in general. 3. Is it true that the goal for polluti

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During a college algebra class, Janeth slumps in her chair and begins to twitch. Regan is sitting beside her and decides to act. Regan lowers Janeth to the floor and clears chairs and desks out of the way and instructs the other students to help. She also has Paul put a pencil in Janeth's mouth. After a minute or two, Janeth recovers and Regan assures her and clears bystanders. What type of illness did the victim have?

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Evaluate $\lim_{x \to -\infty} \frac{x^3 + 2x - 1}{5x^2 - 9}$. If the corresponding limit is infinity, then insert INF in the blank. If the corresponding limit is negative infinity, then insert -INF in the blank. If the corresponding limit does not exist, then insert DNE in the blank. Otherwise, write the number as an integer or a reduced fraction.

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1. What is the opportunity cost of a. holding $10,000 in your checking account (that doesn't pay interest) when the interest rate on interest bearing assets is 5%. b. holding $10,000 in your checking account (that doesn't pay interest) when the interest rate on interest bearing assets is 10%. c. Do you think people are more or less likely to hold balances in their checking account in part b, compared to part a? Why? 2. Suppose the Federal Reserve wants to shift to more restrictive monetary policy. a. What economic problem is the Federal Reserve worried about here? b. How would the Federal Reserve shift to restrictive monetary policy using open market operations? How this open market operation decrease the money supply? c. What would be the effect of restrictive monetary policy on: i. The reserves available to banks ii. The real interest rate iii. Household spending on consumer durables iv. The dollar price of foreign currency. v. Net exports vi. The prices of stocks and real assets like apartments or office buildings vii. Real GDP 3. Suppose the economy is in a recession with high unemployment and low output. a. Draw an aggregate demand and aggregate supply diagram to illustrate the current situation. Be sure to include the AD, SRAS, and LRAS curves. b. Identify the open market operation that would bring the economy out of recession and into long-run equilibrium. c. Draw a graph of the loanable funds market to show the effect of this open market operation on the real interest rate. Why does the open market operation affect the real interest rate? d. Draw an aggregate demand and aggregate supply diagram to illustrate the effect of the open market operation on output and the price level. Explain in works why the policy has the effect that you have shown in the graph.

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You invest $1,000 in a project today. The project will generate a one-time cash flow of $3237 five years from now. If the interest rate is 3%, what is the Net Present Value of the project? (Round to 2 decimal places)

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According to the Association of American Residents Overseas (AARO), 26% of the US population moved their residence to Europe. A study was conducted using SRS and 150 people decided to participate. The sample resulted in 23% of the participants planning to migrate to Europe within the next two years. Could we verify that a normal model could be used for this problem distribution (normality check)? Yes, both the success and non-success are above 10. Yes, but the results are skewed. No, the non-success is so much greater than success. No, the success is not sufficient.

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