Saturated vapor R-134a enters the adiabatic compressor of a refrigeration system steadily at 25 psia. The refrigerant exits the compressor at 200 psia and 220 °F. a) Determine the work (Btu/lbm) required by the compressor for this process. b) Determine the flow work (Btu/lbm) for the refrigerant at the compressor exit. c) Determine the entropy change per unit mass for the refrigerant during the compression process. d) Determine the isentropic efficiency of the compressor. Include an appropriate sketch
In: Mechanical Engineering
Describe Kinetic Molecular theory
)Describe in sentences and pictures the terms effusion and diffusion. Find, write out and solve one effusion/diffusion problems within or at the back of the gas chapter .
In: Chemistry
programming language: JAVA
4. For this question, write code fragments or methods as directed. (a) Create the Point class that depends on a generic data type parameter T. It has two instance variables called xCoordinate and yCoordinate that both have type T. Write a two parameter constructor to initialize the instance variables. Answer: (b) Write a main method that has instructions to perform the following tasks (in order): Declare an ArrayList of Strings called carModels. Add three models. Print the size of the list. Remove the model from index 1. Insert a model at index 0. Replace the model at index 2. Answer: (c) Write a main method with a try-catch block. Inside the block it creates an array of Strings — the array is called list and has size 10. Print the value stored in list[10]. The catch block should catch ArithmeticException and RuntimeException. Your code shouldn’t be longer than 9 lines excluding curly braces. Answer: (d) Write the private method inputCircles that is called by the following main method. As- sume that class Circle exists and has constructors and a toString method. Your method should open a Scanner and obtain a radius for each of the 20 circles that you make from the user. (You should assume that the class Scanner has already been imported.) public static void main(String args[]) { Circle[] data = new Circle[20]; inputCircles(data); for (Circle c:data) System.out.println(c); } Answer:
In: Computer Science
Please show work:
Minnesota Financial is a subsidiary of Mayberry Enterprises. Processing loan applications is the main task of the corporation. They charge a $500 fee for every loan application processed. Next year's fixed costs have been projected as follows: sales and advertising $40,000; building rental, $18,000; Depreciation of computers and office equipment $27,000; and other fixed costs, $5,000. The projected variable costs include: loan officer’s wages, $27 per hour (a loan application takes 5 hours to process); supplies $16.40 per application; and other variable costs, $8.60 per application. (Round all answers to the closest full number)
Questions:
1. Determine the number of loan applications the company must process to (a) break even and (b) earn a profit of $50,000 (round to the closest full number).
2. Determine the number of loan applications the company must process to earn a target profit of $50,000 if fixed costs increase by $10,000.
3. Assuming the original fixed cost information and assuming that 500 loan applications are processed, compute the loan application fee the company must charge if the target profit is $75,000.
4. If 750 loan applications is the maximum number her staff can handle. How much more (less) can be spent on promotional costs if the highest fee tolerable to the customer is $600, if variable costs cannot be reduced, and if the target net income for such an application load is $100,000?
In: Accounting
Is there a way to tell the user in the alert how old they are based on their birthday?
<html>
<head>
</head>
<body style="background-color: lightgreen;">
<center><h1>Contact List</h1></center>
<center>
<form>
<label>firstname: </label>
<input type="text" id="firstname">
<br/><br/>
<label>lastname:</label>
<input type="text" id="lastname">
<br/><br/>
<label>birthday:</label>
<input type="date" id="birthday">
<br/><br/>
<label>address:</label>
<textarea id="addr"></textarea>
<br/><br/>
<input type=submit onclick="datacalc()">
</form>
</center>
<script src="script.js">
</script>
</body>
</html>
//function to call when form is submitted
function datacalc(){
//creating and storing the form data into the person object
var person = {
//1. storing each value in respective data components
firstname : document.getElementById('firstname').value,
lastname : document.getElementById('lastname').value,
//3. Storing the date value in birth propertyName
birth : document.getElementById('birthday').value,
addr : document.getElementById('addr').value,
//2. A method to return greetings to the user
greet : function() {
return "Hi "+this.firstname+"... Glad to meet you !\n";
}
};
//calling the greet function and accessing object values of person
alert( person.greet() + "Your birthday is on " + person.birth );
localStorage.setItem('p', JSON.stringify(person)); //to store the object after serializing it. 'p' is just the id to retrieve it back later. stringify() will convert it into serialized form.
var newPerson = JSON.parse(localStorage.getItem('p')); //to retrieve back the serialized object we stored using the id 'p' we assigned to it. parse() will convert it back into the original object.
alert("Your name as stored in storage is " + newPerson.firstname + " " + newPerson.lastname + " and your birth date stored is " + newPerson.birth);
}
In: Computer Science
Exercise 16-13 Multiple differences; calculate taxable income [LO16-1, 16-4, 16-6]
Southern Atlantic Distributors began operations in January 2018
and purchased a delivery truck for $120,000. Southern Atlantic
plans to use straight-line depreciation over a four-year expected
useful life for financial reporting purposes. For tax purposes, the
deduction is 50% of cost in 2018, 30% in 2019, and 20% in 2020.
Pretax accounting income for 2018 was $520,000, which includes
interest revenue of $60,000 from municipal bonds. The enacted tax
rate is 40%.
Assuming no differences between accounting income and taxable
income other than those described above:
Required:
1. Complete the following table given below and
prepare the journal entry to record income taxes in 2018.
2. What is Southern Atlantic’s 2018 net
income?
| Tax Rate % | Tax $ | Recorded as: | ||||
| Pretax accounting income | $520,000 | |||||
| Permanent difference | ||||||
| Income subject to taxation | 520,000 | x | ||||
| Temporary difference | x | = | ||||
| Income taxable in current year | $520,000 | x | = |
In: Accounting
P5-1A. Journal Entries For Merchandise Transactions on Seller's and Buyer's Books-Perpetual System
The following transactions occurred between the Decker Company and Mann Stores, Inc., during March:
Mar. 8 Decker sold $14,000 worth of merchandise ($9,600 cost) to Mann Stores with items of 2/10, n/30.
10 Mann Stores paid freight charges on the shipment from Decker Company, $500.
12 Mann Stores returned $2,000 of the merchandise ($1,600 cost) shipped on March 8.
17 Decker Received full payment for the net amount due from the March 8 sale.
20 Mann Stores returned goods that had been billed originally at $800 ($600 cost). Decker issued a check for $784.
Required
Prepare the necessary journal entries for (a) the books of Decker Company and (b) the books of Mann Stores, Inc. Assume that both companies use the perpetual inventory system.
In: Accounting
Write a for loop to print all NUM_VALS elements of array hourlyTemp. Separate elements with a comma and space. Ex: If hourlyTemp = {90, 92, 94, 95}, print:
90, 92, 94, 95
Your code's output should end with the last element, without a subsequent comma, space, or newline.
In: Computer Science
It seems as though outsiders are always looking for more detailed information while companies are always trying to keep information confidential. Who’s right? Where do you draw the line?
1.If you were considering investing in a company, what non-financial information related to the company would you want to learn about? Why?
2.If you were a majority shareholder in a company, would you be willing to spend a considerable amount of money (which could otherwise be productively invested) to track and report non-financial information? Why?
In: Accounting
7)If a venture does not have the potential to be scaled up and capture a significant share of a market then venture capital may not be an appropriate funding source. True or False?
8) Base your answers on data at Crunchbase.com. The pre-money value of Zoom before the series A funding round was $6 million. True or False?
9)Successful venture capital investing depends on finding and financing companies that offer “big market” opportunities. True or False?
10)The risk of overvaluing a venture in an early venture capital round is that future investors may be unwilling to buy additional shares at this high valuation and this could starve the company of essential capital. True or False?
In: Operations Management
(a) Determine the amount of work (in joules) that must be done
on a 103 kg payload to elevate it to a height of 1007 km above the
Earth's surface.
MJ
(b) Determine the amount of additional work that is required to put
the payload into circular orbit at this elevation.
J
In: Physics
Calculate ΔGo at 25oC for the reaction H2 + I2 D 2HI. Starting with 1.0 atm H2 and 1.0 atm I2, What is ΔG when: 0.1%, 1%, 10%, 50%, 90%, 99%, and 99.9% has reacted.
In: Chemistry
Using OLS estimation methodology, the study of Morelli and Smith (2015) uses a cross sectional data of 2490 cars for the year 2013 to estimate the factors affecting the price of automobiles in the state of California. The estimation results of regressing the price variable on a set of explanatory variables are shown in Model (1), where the numbers in parentheses are the robust standard errors of the coefficients.
????? = 5647.02 + 5.77 ????ℎ? + 23.64 ??? + 3573.09 ??????? (1)
(1042.20) (1.50) (13.74) (1230)
???_?^2= 0.65, ? = 2490
Where price is in U.S. dollars, weight is in pounds, mpg is the number of miles per gallon, and foreign is a dummy variable that takes 1 if the ith car is foreign and 0 if domestic.
????? = 5524.02 + 6.54 ????ℎ? + 22.73 ??? + 3568.11 ??????? − 93.48 ?????ℎ (2)
(1033.10) (4.85) (13.68) (1232) (32.87)
???_?^2 = 0.92, ? = 2490
If the F-statistic of the coefficients of the four included variables in Model (2) is equal to 54.32, does the inclusion of the variable length in Model (2) creates an econometric problem? Explain in details.
????? = 5631.24 + 4.95 ????ℎ? + 25.99 ??? + 3650.22 ??????? + 88.31 ????? (3)
(1144.67) (1.62) (13.54) (1285.29) (44.38)
???_?^2 = 0.75, ? = 2490
Suppose that the correlations between the variable trunk and the variables price, weight, mpg, and foreign are equal to 0.25, 0.49, -0.38, and -0.36, respectively. Based on these correlations, refer to Model (1) and discuss the direction of the bias of each coefficient of the three included variables. What is your opinion about including the variable trunk as an additional regressor in Model (3)? Does the inclusion of the variable trunk violate any of the OLS assumptions? Explain in details.
In: Economics
What are some of the intended and unintended consequences of using recommendation engines? Explain in 3 sentences
In: Operations Management