Find [H+] in 0.40 M NH4NO3 at 25 degrees Celsius given that Kb = 1.8 x...

Find [H+] in 0.40 M NH4NO3 at 25 degrees Celsius given that Kb = 1.8 x 10-5 for NH3 (aq).

In: Chemistry

Discuss with the aid of diagrams any three (3) particle size reduction equipment?

Discuss with the aid of diagrams any three (3) particle size reduction equipment?

In: Other

Two students take the same test which consists of 5 questions, each one with 5 answers,...

Two students take the same test which consists of 5 questions, each one with 5 answers, each one with only 1 correct answer. If the students respond the test randomly

i) What is the probability that both of the students get the same number of correct answers?

ii) Find the probability that both tests are the same (assume that each test is independent from each other)

iii) What is the expected number of correct answers for each student?

iv) What is the probability that both students pass the test if they have to get at least 3 correct answers to pass it?

In: Math

An object’s position is described by the equation x = At – Bt 4 + C....

An object’s position is described by the equation x = At – Bt 4 + C. What are the dimensions of (a) A, (b) B, and (c) C? (d) Find the time derivative of position, dx/dt. (e) What are the dimensions of the time derivative?

In: Physics

SpeechAnalyst The purpose of this assignment is to practice using strings and C-strings. Your task is...

SpeechAnalyst

The purpose of this assignment is to practice using strings and C-strings. Your task is to create a class that counts words (by looking for spaces) and sentences (by looking for periods). The data will either come in dribs-and-drabs. Use the infamous operator "<<" to output the data seen so far. Because std::string is a class, I'd recommend you use it to store the text information that has been entered through calls to addData and addStringData.

Implementation Details

Sample Driver

SpeechAnalyst

SpeechAnalyst( );

void clear( ); // resets everything...
void addData( char * stuff );
void addStringData( std::string stuff );

int getNumberOfWords( ) const;
int getNumberOfSentences( ) const;

friend ostream& operator << ( ostream& outs, const SpeechAnalyst & sa ); // prints the data seen so far!

std::string myData;

SpeechAnalyst sa;
cout << sa << endl;
std::string speech( "Fourscore and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty and dedicated to the proposition that all men are created equal." );
sa.addStringData( speech );
cout << sa << endl;

sa.clear();
char * data = new char[ 50 ];
strcpy( data, "Muffin says Hello." );
sa.addData( data );
cout << sa << endl;
sa.addData( data );
cout << sa << endl;

Sample Output

No data to print out....
Data has 29 words and 1 sentence.
Data has 3 words and 1 sentence.
Data has 6 words and 2 sentences.

HINT: You may add additional methods to the SpeechAnalyst class as long as you implement those defined in the original class definition.

In: Computer Science

Write a java program that takes 5 students final test scores from console when prompting. Store...

Write a java program that takes 5 students final test scores from console when prompting. Store these scores in an array. Iterate thru the array of student scores to find –

  • Highest score entered

  • Lowest score entered

  • Average of all the 5 scores

  • Total of all the scores

Print these values to the console (screen).

In: Computer Science

A study of depression and exercise was conducted. A total of 5 groups were used: each...

A study of depression and exercise was conducted. A total of 5 groups were used: each group differs by the extent to which group members exercise. A depression rating (scale: 1-100, a continuous variable) was given to all 1410 participants in the sample. An incompleted ANOVA table is provided below. What is the obtained F (i.e., value in Cell [8])?

Sum of Squares

df

Mean Square

F

Between-Group

[1]

[2]

[5]

[8]

Within-Group

185

[3]

[6]

[9]

Total

222

[4]

[7]

[10]

0.84
70.08
None provided.    
58.54
0.2

In: Math

is covid 19 crise worst than the previous crise as 1920 big recession, 1973 and 1979...

is covid 19 crise worst than the previous crise as 1920 big recession, 1973 and 1979 oil crises, 2003 financisl crise ?

In: Economics

How/why does the chemical species F- (fluoride) at concentrations 3.22 ppm cause fish death? Explain your...

How/why does the chemical species F- (fluoride) at concentrations 3.22 ppm cause fish death? Explain your answer in a typed paragraph.

In: Chemistry

Write a program that prompts the user to enter a date in the format mm/dd/yyyy where...

Write a program that prompts the user to enter a date in the format mm/dd/yyyy
where mm is the month , dd is the day and yyyy is a 4 digit year
Check if the date is valid by seeing month is between 1 and 12, day is between 1 to 31 and year is between 1800 to 3000. Also check that if month is 2, day is between 1 to 29
If the date is valid then display the date back in following format dd month year. Use of SimpleDateFormat Java Class is NOT allowed to do this assignment. You need to use String functions from Chapter 4 to do this assignment.

Following is a sample run:
Enter a date in the format mm/dd/yyyy:
02/23/1999
23 Feb 1999

Following is another sample run:

Enter a date in the format mm/dd/yyyy:
02021999
Input String Length should be 10

Following is another sample run:

Enter a date in the format mm/dd/yyyy:
02-23-2000
Invalid Date Format

Following is another sample run:

Enter a date in the format mm/dd/yyyy:
23/02/2000
Invalid Date

In: Computer Science

A child on a sled is travelling a total distance of 93 m down a dirt...

A child on a sled is travelling a total distance of 93 m down a dirt hill with an angle of 30 degrees from the horizontal from the top of the hill. The mass of the child and sled is 65 kg. The initial velocity is zero and the final velocity is 5.0 m/s. (a) What is the time it takes to travel down the hill? (b) What is the acceleration down the hill? (c) What is the force of friction? (d) What is the coefficient of kinetic friction?

In: Physics

Comparative financial statements for Weller Corporation, a merchandising company, for the year ending December 31 appear...

Comparative financial statements for Weller Corporation, a merchandising company, for the year ending December 31 appear below. The company did not issue any new common stock during the year. A total of 700,000 shares of common stock were outstanding. The interest rate on the bonds, which were sold at their face value, was 10%. The income tax rate was 40% and the dividend per share of common stock was $0.40 this year. The market value of the company’s common stock at the end of the year was $27. All of the company’s sales are on account.

Weller Corporation
Comparative Balance Sheet
(dollars in thousands)
This Year Last Year
  Assets
  Current assets:
     Cash $ 1,170 $ 1,310
     Accounts receivable, net 10,700 6,500
     Inventory 13,900 11,000
     Prepaid expenses 630 550
  Total current assets 26,400 19,360
  Property and equipment:
     Land 10,600 10,600
     Buildings and equipment, net 47,353 43,830
  Total property and equipment 57,953 54,430
  Total assets $ 84,353 $ 73,790
  Liabilities and Stockholders' Equity
  Current liabilities:
     Accounts payable $ 20,500 $ 18,400
     Accrued liabilities 1,060 750
     Notes payable, short term 300 300
  Total current liabilities 21,860 19,450
  Long-term liabilities:
     Bonds payable 10,000 10,000
  Total liabilities 31,860 29,450
  Stockholders' equity:
     Common stock 700 700
     Additional paid-in capital 4,000 4,000
       Total paid-in capital 4,700 4,700
       Retained earnings 47,793 39,640
  Total stockholders' equity 52,493 44,340
  Total liabilities and stockholders' equity $ 84,353 $ 73,790
Weller Corporation
Comparative Income Statement and Reconciliation
(dollars in thousands)
This Year Last Year
  Sales $ 79,120 $ 66,000
  Cost of goods sold 46,065 33,000
  Gross margin 33,055 33,000
  Selling and administrative expenses:
  Selling expenses 10,900 11,000
  Administrative expenses 7,100 6,000
  Total selling and administrative expenses 18,000 17,000
  Net operating income 15,055 16,000
  Interest expense 1,000 1,000
  Net income before taxes 14,055 15,000
  Income taxes 5,622 6,000
  Net income 8,433 9,000
  Dividends to common stockholders 280 700
  Net income added to retained earnings 8,153 8,300
  Beginning retained earnings 39,640 31,340
  Ending retained earnings $ 47,793 $ 39,640
Required:
Compute the following financial data for this year:
1.

Accounts receivable turnover. (Assume that all sales are on account.) (Round your answer to 2 decimal places.)


      

2.

Average collection period. (Use 365 days in a year. Round your intermediate calculations and final answer to 2 decimal places.)


       

3.

Inventory turnover. (Round your answer to 2 decimal places.)


       

4.

Average sale period. (Use 365 days in a year. Round your intermediate calculations and final answer to 2 decimal places.)


       

5.

Operating cycle. (Round your intermediate calculations and final answer to 2 decimal places.)


       

6.

Total asset turnover. (Round your answer to 2 decimal places.)

        

In: Accounting

1) The provided file has syntax and/or logical errors. Determine the problem(s) and fix the program....

1)

The provided file has syntax and/or logical errors. Determine the problem(s) and fix the program.

Grading

When you have completed your program, click the Submit button to record your score.

// Uses DisplayWebAddress method three times
using static System.Console;
class DebugSeven1
{
static void Main()
{
DisplayWebAddress;
Writeline("Shop at Shopper's World");
DisplayWebAddress;
WriteLine("The best bargains from around the world");
DisplayWebAddres;
}
public void DisplayWebAddress()
{
WriteLine("------------------------------");
WriteLine("Visit us on the web at:");
WriteLine("www.shoppersworldbargains.com");
WriteLine("******************************");
}
}

2)

The provided file has syntax and/or logical errors. Determine the problem(s) and fix the program.

Grading

When you have completed your program, click the Submit button to record your score.

// Address an envelope using names and addresses
// stored in two parallel arrays
using static System.Console;
class DebugSeven2
{
static void Main()
{
string[] addressees = {"Ms. Mary Mack", "Mr. Tom Thumb", "Dr. Seuss"};
string[] addresses = {"123 Main", "456 Elm" "87 Maple"};
for(int x = 0; x < addressees.Length; ++x)
AddressEnvelope(addresses[x], addresses[x]);
}
private static void AddressEnvelope(string person, string street)
{
WriteLine("To : {0}", person);
WriteLine(" {1}", street);
for(x = 0; x < 30; ++x)
Write("-");
WriteLine();
}
}

In: Computer Science

Two stationary positive point charges, charge 1 of magnitude 3.05nC and charge 2 of magnitude 1.75nC...

Two stationary positive point charges, charge 1 of magnitude 3.05nC and charge 2 of magnitude 1.75nC , are separated by a distance of 44.0cm . An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges.

What is the speed vfinal of the electron when it is 10.0cm from charge 1?

Express your answer in meters per second.

In: Physics

An engine operates with four essential variables controlling its operation. For the engine to be operating...

An engine operates with four essential variables controlling its operation. For the engine to be operating properly, at least two of its control variables must be present at the same time. However, when the machine is not operating correctly, we wish to have some signal to alert us to the problem. Design a circuit to implement the state when the alarm signal is present

In: Computer Science