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What is the solution to this system of equations that contains x y and x y

 
 

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2.Solution gas drive oil reservoirs experience greater recovery efficiency than undersaturated reservoirs during primary recovery. This problem explores some aspects of ...

irs during primary recovery. This problem explores some aspects of this behavior. Consider the expansion of methane from 300 bars to 50 bars at a constant temperature of 40 C (313 K). Methane obeys the following equation of state V =(RT/P)+C+(D/T) where C = 31 cm3/mol, D = -693cm3K/mole, and R = 83.14bar cm3/mole K. Note that the units of energy are bar-cm3/mole in this problem. Report your answer in bar-cm3/mole (a) What is the change in enthalpy during the expansion (b) What is the change in internal energy? (c) What is the heat removed? (d) How much work does the system do during the expansion?
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3.A titration is performed by reacting a 0.200 mol/L standard solution of sodium hydroxide (NaOH) with a solution of hydrochloric ...

a solution of hydrochloric acid (HCl). The molarity of the HCl is unknown molarity. If 0.0250 L of the standard solution is used and this reacts with 25.00 mL of HCl, what is the molarity (mol L-1) of the HCl?
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4.CSE 1300 Problem Solving Practice Conditional Statements Question 1: Student Fees All KSU students pay fees in addition to their tuition. Using the code ...

nts pay fees in addition to their tuition. Using the code provided below as a starting point, write a conditional statement that determines how much a student will pay in fees. • Students registered for 1 – 4 hours pay $843 in student fees. • Students enrolled in 5 or more hours pay $993 in student fees. The program should also display a message to students who have not enrolled in any classes: “You are not enrolled in any classes right now.” NOTE: You must use the variables included in the code snippet get credit for this question. import java.util.Scanner; class Main { public static void main(String[] args) { int creditHours; int fees = 0; Scanner myScanner = new Scanner(System.in); System.out.print("Please enter the number of credit hours you are taking this term: "); creditHours = myScanner.nextInt(); myScanner.close(); //YOUR CODE GOES HERE } } Break the Problem Down Answer the following questions, then use the information to write your code. What are the inputs in the pseudocode above? (INPUT) What are we storing in the pseudocode above? (MEMORY) What calculations are needed? (PROCESSES) What needs to be displayed to the user? (OUTPUT) How many conditions are there in your problem statement? What are they? Does something need to happen if the condition(s) are not met? What type of conditional statement do you need? Solution in Java Problem 2: Block Tuition The cost of KSU’s tuition is determined by the number of credit hours a student enrolls in. Using the chart below, write a conditional statement (ONLY) that sets the value of a tuition variable to what that student will owe. NOTE: For this problem you can assume that all students are enrolled in a minimum of 12 hours. Number of Credit Hours 12 13 14 15 or more Cost (in USD) $2224 $2410 $2595 $2718 Break the Problem Down Answer the following questions, then use the information to write your code. What do we need to store? (MEMORY) What are the inputs in the problem statement above? (INPUT) What calculations are needed? (PROCESSES) What needs to be displayed to the user? (OUTPUT) How many conditions are there in your problem statement? What are they? Does something need to happen if the condition(s) are not met? What type of conditional statement do you need? Solution in Java Problem 3: Class Standing Undergraduate students will be classified based on the number of earned institutional hours. • Freshman: • Sophomore: • Junior: • Senior: 0 - 29 hours 30 - 59 hours 60 - 89 hours 90 hours or more Write a complete program that prompts the user for the number of credit hours they have completed. Write a conditional statement that prints out their class standing based on the information they provided. Sample Output Break the Problem Down Answer the following questions, then use the information to write your code. What do we need to store? (MEMORY) Please enter the number of credit hours you have earned: 29 You are a freshman. What are the inputs in the problem statement above? (INPUT) What calculations are needed? (PROCESSES) What needs to be displayed to the user? (OUTPUT) How many conditions are there in your problem statement? What are they? Does something need to happen if the condition(s) are not met? What type of conditional statement do you need? Solution in Java Problem 4: Maximum Course Load KSU’s policy on maximum course loads during the academic year is as follows: A student in good standing may register for up to 18 hours. The Registrar may approve up to 21 hours for students with an institutional GPA of 3.5 or higher. Students Write a complete program that prompts the user for the number of credit hours they have signed up for. Write the necessary conditional statement(s) to address the stipulations in KSU’s policy. Once the maximum number of hours is determined, display a message to the user that states “You may enroll in X credit hours this semester.” where X is the number of credit hours determined by your program. Sample Output Break the Problem Down Answer the following questions, then use the information to write your code. What do we need to store? (MEMORY) Please enter your GPA: 3.75 You may enroll in up to 21 credit hours this semester. What are the inputs in the problem statement above? (INPUT) What calculations are needed? (PROCESSES) What needs to be displayed to the user? (OUTPUT) How many conditions are there in your problem statement? What are they? Does something need to happen if the condition(s) are not met? What type of conditional statement do you need? Solution in Java Problem 5: First-Year Seminar All first-year full-time students entering Kennesaw State University with fewer than 15 semester hours are required to complete a First-Year Seminar. Students with 30 or more credit hours are not eligible to enroll in a First-Year Seminar. Write a complete program that prompts the user for the number of credit hours they have completed. Write the necessary conditional statement(s) to address the stipulations in KSU’s policy. When you run your program, it should display one of the following messages to the screen: • You must enroll in First-Year Seminar. • You do not have to take First-Year Seminar. • You are not eligible for First-Year Seminar. Sample Output Break the Problem Down Answer the following questions, then use the information to write your code. What do we need to store? (MEMORY) Enter the number of credit hours have you completed: 30 You are not eligible for First-Year Seminar. What are the inputs in the problem statement above? (INPUT) What calculations are needed? (PROCESSES) What needs to be displayed to the user? (OUTPUT) How many conditions are there in your problem statement? What are they? Does something need to happen if the condition(s) are not met? What type of conditional statement do you need? Solution in Java
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5.4. A 2.3 L cylinder containing nitrogen gas at a pressure of 2.8 atm is connected to a 5.5 L ...

r containing nitrogen at 17.3 atm. What is the final pressure when both the cylinders have achieved equilibrium (reached the same pressure)? 6. An analytical procedure requires a solution of chloride ions. How many grams of BaCl2 must be dissolved to make 360 ml of 0.2 M Cl– ? (M BaCl2 = 208 g/mol) 7. Find the concentration of chloride ions when 344.4 mL of 2.4 M NaCl is mixed with 364 mL of 2.9 M KCl? 8. A sample of an unknown gas had a density of 1.45 g/L at 20.5 °C and 1.2 atm. Calculate the molar mass of the gas. (R = 0.08206 L·atm·mol-1·K-1)
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6.consider the titration of 197 ml of .935 M acetic acid, ch3cooh, ka=1.8 x 10^-5 with 1.521 M koh for ...

the next three problems. What is the pH of the solution when 73.87 mL of the 1.521 M KOH are added to the .935 M acetic acid solution? What is the pH of the solution at the equivalence point? What is the pH of the solution when 153.8 mL of the 1.521 M KOH has been added to the .935 M acetic acid solution?
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7.This first part of the Individual Research Project is an Outline and Annotated Bibliography. The Outline should provide a very brief ...

tline should provide a very brief overview of what you think you will do in the Policy Brief. The Annotated Bibliography requires you to summarize at least three peer-reviewed scholarly sources you will cite in the Policy Brief. This assignment is designed to get you thinking about your topic in a way that clearly anticipates the writing you will do for the Policy Brief. We want you to brainstorm and do a bit of research well in advance of the deadline for the Policy Brief and, most importantly, we want you to put your ideas down on paper so that we can give you feedback before writing the actual Policy Brief. In other words, we are asking you to submit an Outline and Annotated Bibliography so that we can help you write the best Policy Brief possible. Your Outline should be divided into the following five sections and should be written in complete sentences: I. Audience: Identify the audience you are addressing and consider what that audience is interested in. Who are you talking to in the Policy Brief and what does this suggest about the approach you should take? (75-100 words). II. Problem: State how you know the issue exists. What is the proof that students need to improve this skill? (125-150 words). III. Importance of Problem: Indicate why this problem matters. What are the consequences of the problem not being addressed? Why do students need to improve this skill? (100 words) IV. Solution: Identify your preferred solution. What solution will work in your context and why? (75-100 words) V. Alternative Solution: Identify at least one other possible solution. What other solutions did you consider? (75-100 words) The total length of the Outline should be between 450 and 550 words. When you submit your Outline, you must also include an Annotated Bibliography. An Annotated Bibliography is an alphabetical list of research sources that provides bibliographical data (the title, author, date, publisher, etc.) and a short summary or annotation of the source. Your Annotated Bibliography should contain a minimum of three scholarly or peer-reviewed sources, each with an accompanying annotation that is between 150 and 250 words long. The annotations must summarize the research question or thesis, research methodology, results, and conclusion. Annotations must include summaries and paraphrased information, NOT quotations. A good annotation will include two separate paragraphs: 1) a paragraph summarizing the research question or thesis, research methodology, results and conclusion; and 2) a paragraph commenting on why this source is relevant for your research.
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1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

mathematicsalgebra Physics