Calculate the work done to stretch an elastic string by 40cm if a force of 10N produces an extension of 4cm in it?​

Answers

Answer 1

The work done to stretch an elastic string by 40cm is 20 Joules

Hooke law states that the force (F) applied to a spring is directly proportional to the extension (e).

F ∝ e

F = ke

k is the constant

Given that a force of 10N produces an extension of 4cm, hence:

F = ke

10 = k(4)

k = 2.5 N/cm

For an extension of 40cm, the work done is:

Work done = (1/2)ke²

Work done = (1/2)(2.5 N/cm)(40 cm)² = 2000Ncm = 20 Nm

Work done = 20 Joules

The work done to stretch an elastic string by 40cm is 20 Joules

Find out more at: brainly.com


Related Questions

What term describes the amount you must pay in order to be considered “up-to-date” with your credit card payments?
Interest
Minimum payment
Closing balance

Answers

Answer:

Minimum payment

Step-by-step explanation:

A minimum payment is the least amount that one must pay to be "up-to-date" with one's credit card payments.

In this exercise we have to use the knowledge of finance and identify in the given statement which term is used correctly:

Minimum payment

So the term used in this exercise corresponds to:

A minimum fee happen the minimal amount your credit card issuer will acknowledge toward your charge card balance each temporal length of event or entity's existence. You must pay not completely this amount for your fee to be deliberate "according to schedule," and to prevent late charge for service or privilege and other punishment.

See more about  finance  at brainly.com/question/10024737

if a system of equations have no solution, what does the graph look like?

Answers

The two lines are parallel.

I need an answer ASAP besties- I’m currently crying rn

Answers

Answer:

126/25 or 5.04

Step-by-step explanation:

Help I have a C in math. I don't understand this Alegbra. If you get it right then I will give you Brainlist! (Ignore the black dots because I am not sure if they are right)​

Answers

Answer:

YOUR RIGHT FOR BOTHH

Step-by-step explanation:

Answer:

Step-by-step explanation:

What would 4 divided 4/5 be and please explain step by step or show your work on a piece of paper to get marked =]

Answers

Answer:

5

Step-by-step explanation:

4/1 ÷ 4/5 = 4/1 x 5/4 = 20/4 = 5

The population of Westport was 43,000 at the beginning of 1980 and has steadily decreased by 1% per
year since.
Find the population at the beginning of 1994. Round to the nearest person.

Answers

Answer:

37356

Step-by-step explanation:

it takes an engineer three hours to drive to his brother's house at an average speed of 50miles per hour. If he takes the same route home, but his average speed is 60 miles per hour, what is the time, in hours that it takes him to drive home?​

Answers

Answer:

2.5 hours

Step-by-step explanation:

→ Write the formula

Speed = Distance ÷ Time

→ Find the distance for 3 hours at a speed of 50 mph

Distance = Speed × Time ∴ 3 × 150 = 150

→ Now work out the time

150 ÷ 60 = 2.5 hours

4/8 x 4/5 = ? Help me please

Answers

hope it helps...................

[tex] \frac{4}{8} \times \frac{4}{5} [/tex]

Simplify:

[tex] \frac{4}{2} \times \frac{1}{5} [/tex]

[tex] \frac{4}{10} = \frac{2}{5} [/tex]

Which ordered pair is a solution of the equation?
7x – 2y = -5

Answers

Answer:the answer should be (1,5)

Step-by-step explanation:

Can I get help with 1C please?

Answers

Answer:

14

Step-by-step explanation:

Which statements are true about rational expression multiplication? Check all that apply.

The closure property states that the sum of two rational expressions is an irrational number.
Rational expressions are closed under multiplication.
The commutative property states that changing the order of two or more factors does not change the value of the product.
The associative property states that the way in which two or more factors are grouped in a product changes the value of the product.
The properties of rational expression multiplication are parallel to the properties of rational number multiplication.

Answers

9514 1404 393

Answer:

  B, C, E

Step-by-step explanation:

(a) <does not refer to multiplication> FALSE

(b) Rational expressions are closed under multiplication.TRUE

(c) The commutative property states that changing the order of two or more factors does not change the value of the product. TRUE

(d) The associative property states that the way in which two or more factors are grouped in a product changes the value of the product. FALSE, the product will be unchanged.

(e) The properties of rational expression multiplication are parallel to the properties of rational number multiplication. TRUE

Answer:

The answer is B, C, E. aka, 2,3,5

Step-by-step explanation:

Here is proof! Hope you pass<33

Michelle divided her birthday cake into sixteen pieces and gave one piece to each of her nine friends. Express the total number of pieces of cake she gave to her friends as a fraction.

Answers

Answer:

give me 1 min ill answer it

Step-by-step explanation:

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

Step-by-step explanation:

The answer is B brace in this image it shows the words that it says plz trust me and tell me if this is wrong it should not be tho

Please solve this. I need help on it​

Answers

Answer:

look at the photo............

9514 1404 393

Answer:

  ∠PTQ = 40°

  ∠PTR = 140°

Step-by-step explanation:

The two marked angles are "vertical" angles, so are congruent.

  ∠PTQ = ∠STR

  (x +28)° = (2x +16)°

  12 = x . . . . . . . . . . . . . . . divide by °, subtract x+16

Then the measure of angle PTQ is ...

  ∠PTQ = (x +28)° = (12 +28)° = 40°

That and angle PTR form a linear pair, so are supplementary.

  ∠PTR = 180° -∠PTQ = 180° -40° = 140°

36. The girls' gym teacher needs to purchase
15 softballs, 5 packages of tennis balls,
and 2 soccer balls. She plans to collect
$1 from each of her 15 students to help
pay for the balls. Write and evaluate an
expression to show how much more the
teacher will have to pay.
Help

Answers

Answer:Message me for full answer

Step-by-step explanation:


Simplify t^12/t^6
A. 2
B. 6
C. 6
D. 7-2

Answers

Answer:

t

12

/t

6

=t

12−6

=t

6

if this helps your welcome

spot the error and rewrite pllz I need now


Quotient ×Remainder+dividend=Divisor​

Answers

Answer:

Divisor × Quotient + Remainder = Dividend

Step-by-step explanation:

Hope it is helpful.....

Answer:

Divisor×Quotient+Dividend=Remainder

A tent in the shape of a triangular prism is set up at a camping site. Use the measurements to calculate the volume of the tent. Report the answer using the correct number of significant figures. Remember, the volume formula for a triangular prism is given by V=Bh
Please helpp !! Will mark brainlest
A. 132cm2
B. 130cm2
C. 100cm2
D. 140cm2

Answers

Answer:

100 cm2

Step-by-step explanation:

The volume of the triangular prism will be 132 cubic centimeters. The correct option is A.

What is the volume of the prism?

Volume is defined as the space occupied by any object in the three-Dimensions. All three parameters are required for the volume like length, width, and height of the cube or Cuboid. The volume of the rectangular prism is calculated by the product of the triangular base and the height of the prism.

Given that the dimensions of the base of the prism are height = 4cm and base = 6 cm and the length of the prism will be 11 cm.

The volume of the prism will be calculated as:-

V= ( 1/ 2 ) b x h x L

V = 0.5 x 4 x 6 x 11

V = 132 cubic centimeter

Therefore, the volume of the triangular prism will be 132 cubic centimeters. The correct option is A.

To know more about the volume of the prism follow

https://brainly.com/question/23963432

#SPJ5

The circles Diameter is 15 feet find the circumference of the circle. use 3.14

Answers

Answer:

The circumference of a circle with a diameter of 15 feet is 47.1 feet.

Step-by-step explanation:

To find circumference you multiply diameter by pi, or in this case 3.14.

15 × 3.14 = C

47.1 = C

The circumference of a circle with a diameter of 15 feet is 47.1 feet.

How do I write a percent as a fraction in simplest form? Please explain step by step to get marked

Answers

Step-by-step explanation:

Divide the percentage by 100. E.g 74%=64/100

Then simplify the newly made fraction,

Find the common factors,

E.g 64/100

Both can be divided by 2

32\50

Repeat simplifying step...

16\25

Till there are no more common factors

and that's the final answer...

Hope you understand, if not leave a comment and I'm ready to help, please mark BRAINLIEST.

Use the y- and x-intercepts to write the equation of the line. x- intercept (-6,0), y - intercept (0,-8)

Answers

The equation, according to these points, is equal to y = -1.4x + -8

(The -1.4 is rounded from a repeating -1.33333…)

Solve the following proportion problem. Round to two decimals as need.

2.4/x = 5

Answers

Step-by-step explanation:

If you mean, 2.4 divided by x equals 5,

and we're to find x,

x=2.4÷5

x=0.48

Hope this helps, If so mark BRAINLIEST please

IS
ΔABC » ΔQRS
Find the missing side length, x.

Answers

Answer:

x = 10

Step-by-step explanation:

x/8 = 15/12

x/8= 5/4

x= (8 x 5)/4

x = 10

= 7W + 5 + 6 is it a
Commutative property of addition, Commutative property of multiplication, Associative property of addition, Associative property of multiplication,
Distributive property.

Answers

Answer:

Associative property of addition

Step-by-step explanation:

HELP ME SOLVE THIS PLSS

Answers

no solution,

48x+43=47x+43

     -43         -43

48x=47x

if x= 1

48 is not equal to 1

B

Answer:

B

Step-by-step explanation:

It's impossible to let these 2 equation have same answer!

Find the indicated values by using the graph.


1. h(2)=_____

2. h(4)=_____

3. h(1)=_____

4. h(5)=_____

5. h(____)=4

6. h(____)=1

7. What are the values for h(____)=2?

Answers

Answer:

1. 6

2. -1

3. 5

4. 2

5. -1

6. 5

7. 6

Solve x2+12x=82 using completing the square. Answer the questions below.

Answers

Answer:

exact form : x =  ± √ 118 − 6

Decimal form :  x =  4.86278049 or − 16.86278049

Step-by-step explanation:

Use the formula  ( b /2 ) ^2  in order to create a new term. Solve for  x  by using this term to complete the square.

A vendor who sold bread at farmers' markets counted the number of leftover loaves at the
end of each day.
Day
Loaves of leftover bread
Leftover loaves
Tuesday
22
Wednesday 24
Thursday
20
Friday
22
Saturday
27
According to the table, what was the rate of change between Wednesday and Thursday?

Answers

Answer:

Step-by-step explanation:

4 loaves

Answer:

- 4

Step-by-step explanation:

Given:

Wednesday = day 3 = 24 loavesThursday = day 4 = 20 loaves

Rate of change:

Difference in the number of loaves / difference in the number of days(20 - 24)/(4 - 3) =- 4/1 = - 4

PLEASE HELP I WILL GIVE BRAINLIEST!!

Ella completed the following work to test the equivalence of two expressions.

2 f + 2.6. 2 (0) + 2.6. 0 + 2.6. 2.6. 3 f + 2.6. 3 (0) + 2.6. 0 + 2.6. 2.6.

Which is true about the expressions?
The expressions are equivalent because Ella got different results when she substituted zero for f.
The expressions are equivalent because Ella got the same result when she substituted zero for f.
The expressions are not equivalent because Ella would get different results when substituting different numbers for f.
The expressions are not equivalent because Ella would get the same results when substituting different numbers for f.

Answers

Answer  *The expressions are not equivalent because Ella would get different results when substituting different numbers for f.

(But I'm not sure.

Answer:

the answer is b

Step-by-step explanation:

bcz when she substituted 0 for f she got the same result on both the answers

it does matter what the constant of the first term is as long as the second term remains the same ( the first constant or number is being multiplied by 0 the result will always be 0)

I’m don’t understand stand these that well, can someone please explain step by step to get marked.

Answers

Answer:

10

Step-by-step explanation:

press calculate

pls give brainliest

Answer: 10

Step-by-step explanation:

The sign √ means square root. Squaring is like multiplying a number by its own self again ( for example, x times x is equal to x squared). A square root is like dividing the square by its own self ( for example, √x^2 is equal to x ).

The square root of 100 is 10, since 10 squared is equal to 100.

Other Questions
The average mark scores by 29 students in a science test was 56%. Jessica was sick, so she sat thetest later and scored 71%. Including Jessica's score, what was the new value of the mean mark? i just passed my math test that i had no idea how to do :)i just felt the need to share that for some reasonhave a good day/night/afternoon ^^ How can you begin networking online? Whats step one? an open steel can of volume 216 L is filled to the top with gasoline at 13.5 C. when it warms to 36.0 C, how much gas spills over? (don't forget, both the can and the gasoline are expanding.) A circle has an area 225 square inches. If the radius of the circle is multiplied by 6, then what is the area of the new circle formed? is a grasshopper a herbivore carnivore or omnivore Which of the following is not ametal?A. goldB. nitrogenC. silver which of the following best describes ""compilation"" in reference to computer science? A critical first step in dealing with pain in pediatric patients is to assess the patient's discomfort by taking a__admission. duringO Pain interpretation evaluationO Psychological historyO physical assessmentO pain history In PC relative addressing mode, the PC and constant need to be added tocalculate the branch address.In immediate addressing mode, the operand is a register.a) Only Ib) Only IIBoth I and I are trued) Neither I nor II The Pure Food and Drug Act and the Meat Inspection Act were passed in order to 5n + 1/8 = 3n-5/4Solve for n four particles connected by rigid rods of negligible mass where y1 = 5.70 m. the origin is at the center of the rectangle. The system rotates in the xy plane about the z axis with and angular speed of 5.60 rad/s. a) calculate the moment of inertia of the system about the z axis. b) Calculate the rotational kinetic energy Acetylene (C2H2) gas and oxygen (02) gas react to form carbon dioxide (CO2) gas and water (H20) vapor. Suppose you have 2.0 mol of C,H, and 1.0 molof o, in a reactorCalculate the largest amount of CO, that could be produced. Round your answer to the nearest 0.1 mol. A pack of $2.99 crayons is on sale 50% off what is the discount? chng minh rng S= 5+ 5^2 + 5^3 + ...+ 5^1991 + 5 ^1992 chia ht cho 6 What event caused the crusades?A. The spread of the bubonic plagueB. Seljuk Turks gained control of the holy landC. Rome was invaded by Muslim TurksD. Christian Byzantine empire separated from the Roman Catholic Church Explain the impact natural resources have upon a nation's economy. What is the concept of genetic engineering? Cite its advantages and disadvantage (if there is any). Find the equation of the line that passes through (1,3) and is perpendicular to y = 1 2 x