An insulated Thermos contains 128 g of water at 81.3 ˚C. You put in a 12.5 g ice cube at 0.00 ˚C to form a system of ice + original water. The specific heat of liquid water is 4190 J/kg•K; and the heat of fusion of water is 333 kJ/kg. What is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
In: Physics
Which of the following is NOT an argument against economic growth? Group of answer choices
Growth may deplete resources.
Growth is often inequitable.
Growth has negative environmental impacts.
Growth leads to an expansion of power.
In: Economics
In: Economics
In: Economics
Sheffield Inc. was authorized to issue 100000 £10 par value
ordinary shares. As of December 31, 2020, the company had issued
54000 shares at an average price of £22 per share. During 2020, the
company felt that the shares were undervalued so it purchased 9800
treasury shares at £16 per share. When the share price rebounded
later in the year, the company sold 4200 of the treasury shares for
£24 per share. Retained earnings was £1666000 at December 31,
2020.
Total equity at December 31, 2020 is
£2697200.
£2994000.
£2764400.
£2798000.
In: Accounting
Delayed Exports has four bonds outstanding. If the relevant tax rate is 35 percent, what is the after-tax cost of Delayed Exports' debt ? (Do not round your intermediate calculations.) |
Bond |
Coupon Rate |
Yield to Maturity |
Price Quote (% of Face Value) |
Maturity |
Face Value |
1 | 6.50% | 6.30% | 101 | 6 years | $ 25,000,000 |
2 | 7.60% | 6.01% | 110 | 8 years | $ 41,000,000 |
3 | 6.70% | 6.42% | 103 | 18 years | $ 45,000,000 |
4 | 7.70% | 6.55% | 115 | 30 years | $ 56,000,000 |
In: Finance
After corona effects on
1.Infrastructure
2.Transport
3.Business
3.Tech companies.
Consider various news sites analyse and then answer.But do not copy directly.Use only facts from International news sites.Write in your own words.Thank you.
In: Operations Management
What were the principal causes of industrial disputes and strikes between management and workers in Britain Motor Industry from 1945?
In: Economics
7. Please answer questions 7a through 7c below. You produce widgets. Currently you produce 4 widgets at a total cost of $40.
7a. What is your average cost of producing widgets? Please show calculation and work.
7b. Suppose that you could produce 6 widgets and the total cost of producing 6 widgets is $30. If you produce 6 widgets, what will your average total cost be? Compared to your answer in 3a, has your average total cost increased or decreased and does your firm experience economies of scale or diseconomies of scale and why? Please show your work and calculations and then explain.
7c. Suppose that you could produce 10 widgets and the total cost of producing 10 widgets is $120. If you produce 10 widgets, what will your average total cost be? Compared to your answer in 7b, has your average total cost increased or decreased and does your firm experience economies of scale or diseconomies of scale and why? Do you think your firm will experience some problems if your firm does experience diseconomies of scale? If so, why? If not, why not? What can you, as a manager of the widget company, do to correct this problem? Explain. Please show your work and calculations and then explain.
In: Economics
1) The amount of time analyzed whether to buy a product is quite long. The demand for this product is
elastic or inelastic
2) The proportion of the budget spent on the item is very small. The demand for this product is
elastic or inelastic
3) An increase in the quantity demanded could be caused by: (if the product is a superior good with substitute and complementary goods. Choose all of the correct items)
a) an increase in the price of substitute goods
b) a decrease in the price of complementary goods
c) an increase in consumer income levels
4) There are lots of substitutes available. The demand for this product is
elastic or inelastic
5)The product is highly durable. The demand for this product
is
elastic or inelastic
In: Economics
300-400 words, APA Citation/References
What is the relationship between risk and return? What is the significance of this relationship for the investor?
In: Finance
1. Using diagrams, illustrate how the price (P) and the demand (d) for a perfectly-competitive firm are determined.
2. Using a diagram, show how the perfectly-competitive firm determines its profit-maximizing output.
3. Differentiate between productive efficiency and allocative efficiency.
In: Economics
Write this in your own words: In 100 words or Less
How Sulfate attacks (external/internal), Steel corrosion, carbonation affect the durability of concrete and what prevention methods are used to minimise the impact of these external factors?
In: Civil Engineering
how did various ideologies- whether religious, national, political or racial influence antisemitic thought and behavior between 1789 and 1945?
In: Economics
Provide immediate feedback for each mistyped sentence. To do so, modify the Test class’s present_test method so that it informs the player a mistake has been made, then display the challenge sentence followed by the player’s sentence so the player can determine where the error lies.
#--------------------------------------------------------------------------
#
# Script Name: TypingChallenge.rb
# Version: 1.0
# Author: Jerry Lee Ford, Jr.
# Date: March 2010
#
# Description: This Ruby script demonstrates how to apply conditional logic
# in order to analyze user input and control script execution
# through the development of a computer typing test that
# evaluates the player's typing skills.
#
#--------------------------------------------------------------------------
# Define custom classes ---------------------------------------------------
#Define a class representing the console window
class Screen
def cls #Define a method that clears the display area
puts ("\n" * 25) #Scroll the screen 25 times
puts "\a" #Make a little noise to get the player's attention
end
def pause #Define a method that pauses the display area
STDIN.gets #Execute the STDIN class's gets method to pause script
#execution until the player presses the Enter key
end
end
#Define a class representing the typing test
class Test
#This method displays the 8-ball greeting message
def display_greeting
Console_Screen.cls #Clear the display area
#Display a welcome screen
print "\t\t Welcome to the Ruby Typing Challenge game!" +
"\n\n\n\n\n\n\n\n\n\n\n\n\nPress Enter to " +
"continue. \n\n: "
Console_Screen.pause #Pause the game
end
#Define a method to be used to present test instructions
def display_instructions
Console_Screen.cls #Clear the display area
puts "\t\t\tInstructions:\n\n" #Display a heading
#Display the game's instructions
puts %Q{ This test consists of a series of 10 typing challenges.
The challenge sentences are presented one at a time. To respond
correctly, you must retype each sentence exactly as shown and press
the Enter key. Your grade will be displayed at the end of the test.
\n\n
Grading format: 9 or better sentences typed correctly will result in an 'A',
8 sentences typed correctly will result in a 'B',
7 sentences typed correctly will result in a 'C',
6 sentences typed correctly will result in a 'D',
less than 6 will result in an 'F'!
\n\n\n\n\n\n\n\n\n
Press Enter to continue.\n\n}
Console_Screen.pause #Pause the game
end
#Define a method to be used to present typing challenges
def present_test(challenge)
Console_Screen.cls #Clear the display area
print challenge + "\n\n: " #Display the challenge sentence
result = STDIN.gets #Collect the player's input
result.chop! #Remove the end of line marker
#Analyze the player input and see if it is correct
if challenge == result then
#Keep track of the number of correctly retyped challenge sentences
$noRight += 1
Console_Screen.cls #Clear the display area
#Keep the player informed
print "Correct!\n\nPress Enter to continue."
Console_Screen.pause #Pause the game
else
Console_Screen.cls #Clear the display area
#Keep the player informed
print "Incorrect!\n\nPress Enter to continue."
Console_Screen.pause #Clear the game
end
end
#Define a method to be used to display test results
def determine_grade
Console_Screen.cls #Clear the display area
#To pass the test the player must correctly retype 6 sentences
if $noRight >= 6 then
#Inform the player of the good news
print "You retyped " + $noRight.to_s + " sentence(s) correctly. "
puts "You have passed the typing test!\n\nPress Enter to continue."
else #The player has failed the test
#Inform the player of the bad news
print "You retyped " + $noRight.to_s + " sentence(s) correctly. "
puts "You have failed the typing test!\n\nPress Enter to continue."
end
# Grading Sytem for the Challenge
letter Grade = case $noRight
when 9..10 then "A"
when 8 then "B"
when 7 then "C"
when 6 then "D"
else "F"
end
end
# Main Script Logic -------------------------------------------------------
#Initialize global variable that will be used to keep track of the number
#of correctly retyped sentences
$noRight = 0
Console_Screen = Screen.new #Instantiate a new Screen object
Typing_Test = Test.new #Instantiate a new Test object
#Execute the Test object's display_greeting method
Typing_Test.display_greeting
#Execute the Screen object's cls method in order to clear the screen
Console_Screen.cls
#Prompt the player for permission to begin the test
print "Would you like to test your typing skills? (y/n)\n\n: "
answer = STDIN.gets #Collect the player's response
answer.chop! #Remove any extra characters appended to the string
#Loop until the player enters y or n and do not accept any other input.
until answer == "y" || answer == "n"
Console_Screen.cls #Clear the display area
#Prompt the player for permission to begin the test
print "Would you like to test your typing skills? (y/n)\n\n: "
answer = STDIN.gets #Collect the player's response
answer.chop! #Remove any extra characters appended to the string
end
#Analyze the player's response
if answer == "n" #See if the player elected not to play
Console_Screen.cls #Clear the display area
#Invite the player to return and play again
puts "Okay, perhaps another time.\n\n"
else #The player wants to take the test
#Execute the Test object's display_instructions method
Typing_Test.display_instructions
#Display typing challenges and grade each answer by calling on the
#Test object's present_test method
Typing_Test.present_test "In the end there can be only one."
Typing_Test.present_test "Once a great plague swept across the land."
Typing_Test.present_test "Welcome to Ruby Principles of Ruby Programming"
Typing_Test.present_test "There are very few problems in the world " +
"that enough M&Ms cannot fix."
Typing_Test.present_test "Perhaps today is a good day to die. Fight " +
"beside me and let us die together."
Typing_Test.present_test "Don't cry because it's over, smile because it happened"
Typing_Test.present_test "Be yourself; everyone else is already taken."
Typing_Test.present_test "So many books, so little time."
Typing_Test.present_test "A room without books is like a body without a soul."
Typing_Test.present_test "You know you're in love when you can't fall asleep because reality is finally better than your dreams."
#Notify the player of the results by executing the Test object's
#display_instructions method
Typing_Test.determine_grade
Console_Screen.pause #Pause the game
Console_Screen.cls #Clear the display area
#Thank the player for taking the typing test
puts "Thank you for taking the Ruby Typing Challenge.\n\n"
end
In: Computer Science