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
Rina8888 [55]
3 years ago
6

A spring has a natural length of 25 meters. A force of 12 newtons is required to stretch the spring to a length of 30 meters. Ho

w much work is done to stretch the spring from it's natural length to 40 meters?
Mathematics
1 answer:
blagie [28]3 years ago
3 0
F = ks 
<span>12 = k(15) </span>

<span>12/15 = k </span>


<span>integrating from 0 to 15 </span>
<span>12/15 sds </span>


<span>12/15 x S squared / 2 from 0 to 15 </span>
You might be interested in
Use Newton's method with initial approximation x1 = −2 to find x2, the second approximation to the root of the equation x3 + x +
nevsk [136]

Answer:

x_2 \approx -1.769

Step-by-step explanation:

Let f(x)=x^3+x+7

So f'(x)=3x^2+1

x_{n+1}=x_n-\frac{f(x_n)}{f'(x_n)}

Let x_1=-2

We are going to find x_2

So we are evaluating -2-\frac{f(-2)}{f'(-2)}

First step find f(-2)

Second step find f'(-2)

Third step plug in those values and apply PEMDAS!

f(-2)=(-2)^3+(-2)+7=-8-2+7=-10+7=-3

f'(-2)=3(-2)^2+1=3(4)+1=12+1=13

So

x_2=-2-\frac{-3}{13} \\\\ x_2=\frac{-26+3}{13} \\\\ x_2=\frac{-23}{13} \\\\ x_2 \approx -1.769

5 0
2 years ago
Ulio has started his very own floral business. He sells centerpieces for $19.50 each. His fixed costs are $500 per month, and ea
erastova [34]
He would need to at least 44 to sell before breaking even.
8 0
3 years ago
Could someone help with my previously asked questions​
m_a_m_a [10]

Answer:

ill try! <3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How many terms are in this expression 4+3c
kirza4 [7]

Answer: there are 2 terms

Step-by-step explanation: A term is a single mathematical expression. It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted. ... Examples of single terms: 3x is a single term.

4 0
2 years ago
Read 2 more answers
A sandbox has a volume of 648 cubic feet. what is the volume, in cubic yards, of the sandbox?
Eduardwww [97]
We know that

1 cubic yards equals to--------------> 27 <span>cubic feet
then
</span><span>I apply a rule of three
if  </span>1 cubic yards ------------------- 27 ft³
  X----------------------------------> 648 ft³
X=648/27=24 cubic yards

the answer is 24 cubic yards
6 0
3 years ago
Other questions:
  • Robby is a cashier at the supermarket. During a 9-hour shift, he checks out 108 customers. If he checks out the same number of c
    11·2 answers
  • 100 POINTS<br><br> PLEASE PROVIDE STEPS AND GRAPH.<br><br> GRAPH USING DESMOS IF POSSIBLE.
    11·1 answer
  • Can anyone please help?
    7·1 answer
  • Need help for 3 2/3 - 1/2
    9·2 answers
  • What Do I put in the Boxes that say Variables, please help will mark brainliest :)
    15·1 answer
  • The equation of a line is p is 2x + 3y = 3, and the equation of line q is 2x - 3y = 0. Lines P and q have same y -intercept
    13·1 answer
  • What is the value of tan(60°)?<br><br> A. 1/2<br> B. √3<br> C. √3/2<br> D. 1/√3
    14·2 answers
  • The figure shows line RS parallel to line UV. The lines are intersected by 2 transversals.
    15·1 answer
  • The given exponential function f(x)= (.67)* - 7 represents:
    10·1 answer
  • The length of a rectangle is a inches. Its width is 5 inches less then the length. Find the area and perimeter of the rectangle
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!