1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11111nata11111 [884]
2 years ago
10

A steel bar is 10 mm diameter and 2 m long. It stretched with a force of 20 kN and extends by 0.2 mm. Calculate the stress and s

train. What is the Young’s modulus of the steel bar?
Business
1 answer:
Firlakuza [10]2 years ago
7 0

Answer:

2.5 * 10^12 Nm-2

Explanation:

Stretching force = 20 * 10^3 N

diameter = 10 * 10^-3 m

extension = 0.2 * 10^-3 m

length of bar = 2m

Young Modulus = stress/strain

stress = Force/Area

Strain = extension/length

Young Modulus = Force/Area/extension/length

But area = πr^2 = 3.142 * (5 *10^-3)^2 = 7.9 * 10^-5 m^2

Stress = 20 * 10^3/7.9 * 10^-5  = 2.5 * 10^8 Nm-2

Strain = 0.2 * 10^-3/2 = 1 * 10^-4

Young Modulus = 2.5 * 10^8/1 * 10^-4  

Young Modulus =  2.5 * 10^12 Nm-2

You might be interested in
During 2020 the Pharoah Company had a net income of $85100. In addition, selected accounts showed the following changes: Account
PSYCHO15rus [73]

Answer:

Cash provided by operating activities $84,700

Explanation:

The computation of the amount of cash provided by operating activities is shown below:

Net income  $85,100

Add: depreciation expense $1,400

Less: increase in account receivable -$2,700

Add: Increase in account payable $900

Cash provided by operating activities $84,700

3 0
3 years ago
Money demand is given by md/p = 1000 .2y - 1000i. given that p = 200, y = 2000, and i = .10, real money demand is equal to?
Marrrta [24]

The real money demand is equal to $2,60,000

Money demand/ P = 1000+0.2Y -1000i

Money demand/200= 1000+0.2(2000)-1000(0.1)= 1000+400-100

=1300

Money demand  /200 = 1300

Money demand  = $1300*200

= $2,60,000

Money demand is the demand for real cash balances as people hold onto money to purchase goods and services. The higher the price level, the more money you need to buy a certain amount of goods.

Learn more about Money demand here:brainly.com/question/24109874

#SPJ4

4 0
2 years ago
The break-even point is that level of activity where: Multiple Choice a) total revenue equals total cost. b) variable cost equal
shtirl [24]

Answer:

a) total revenue equals total cost.

Explanation:

The break-even point is the level of activity in which total revenue equals total cost. It can also be defined in terms of  units sold for a year is as the fixed expenses for the year divided by the contribution margin per unit of product. Note that exactly at the break-even point, there is no profit or loss.

Therefore, the answer is alternative a).

3 0
3 years ago
Payroll Taxes Champaign Inc., a company that provides educational consulting services to large universities across the nation, h
HACTEHA [7]

Answer:

Date       Account Title                                                          Debit          Credit

XX-XX    Wages Expense                                                    $62,000

              Federal Income Tax Withholding Payable                              $7,440

              Social Security Taxes Payable (Employee)                            $3,844

              Medicare Taxes Payable (Employee)                                     $  899

              Cash                                                                                         $49,817

<u>Working </u>

Social Security Taxes Payable (Employee) = 6.2% * 62,000 = $3,844

Medicare Taxes Payable (Employee) = 1.45% * 62,000 = $899

Date       Account Title                                                         Debit            Credit

XX-XX   Social Security Taxes Expense (Employer)        $3,844

             Medicare Taxes expense (Employer)                   $899

             State Unemployment tax expense                        $75

             Social Security Taxes Payable (Employer)                             $3,844

             Medicare Taxes Payable (Employer)                                      $899

             State Unemployment tax Payable                                           $75

5 0
3 years ago
2.
Mama L [17]

Answer:

The correct answer to this IMPOSSIBLE question is the correct answer to this is the right one is B. I hOpE yOu EnJoY tHe ReSt Of YoUr DaY;)

6 0
3 years ago
Read 2 more answers
Other questions:
  • On January 1, 2021, Splash City issues $340,000 of 9% bonds, due in 20 years, with interest payable semiannually on June 30 and
    11·1 answer
  • Jit is a ______________ system.<br> a. push<br> b. pareto's law<br> c. mrp<br> d. pull
    12·1 answer
  • An organization characterized by direct two-way lines of responsibility and communication running from the top of the organizati
    11·1 answer
  • During Year 5, Stout Inc. made a cash payment of $186,000 on dividends declared in Year 4 and paid $2,650,000 to retire $2,620,0
    6·1 answer
  • On November 10 of the current year, Flores Mills sold carpet to a customer for $8,000 with credit terms 1/10, n/30. Flores uses
    7·1 answer
  • How might a person’s place in the life cycle influence investment decisions?
    8·1 answer
  • The circle graph shows information about Germany's labor force in 2011.
    10·2 answers
  • The cost of wages paid to employees directly involved in the manufacturing process in converting materials into finished product
    6·1 answer
  • Determine which moral standard of social responsibility the business is observing. Meg's company decided to build an additional
    5·2 answers
  • Purely domestic firms will be at a disadvantage to mnes in the event of market disequilibria because
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!