- #1

groom03

- 27

- 0

**[SOLVED] More hookes law question**

## Homework Statement

i can't get the equation to work out to the right answer of 110-130Gpa

## Homework Equations

E=kL/A

k-1.45

L=2metres

A = 0.292cm

## The Attempt at a Solution

i get 0.0099Gpa

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter groom03
- Start date

- #1

groom03

- 27

- 0

i can't get the equation to work out to the right answer of 110-130Gpa

E=kL/A

k-1.45

L=2metres

A = 0.292cm

i get 0.0099Gpa

- #2

G01

Homework Helper

Gold Member

- 2,696

- 17

- #3

groom03

- 27

- 0

I've got to work out the Youngs modulus of a meterial using the equation k=EA/L which rearrnged to E=kL/A i know k because its the gradient of a force extension graph i made, A is the x-sectional area of the wire and L is original length of the wire. wiki says the youngs modulus of copper 110-130 Giga Pascals but i get something stupid like 0.009Gpa.

- #4

G01

Homework Helper

Gold Member

- 2,696

- 17

- #5

groom03

- 27

- 0

- #6

G01

Homework Helper

Gold Member

- 2,696

- 17

Good to hear. Sometimes it always boils down to something simple like the units.

- #7

groom03

- 27

- 0

Thanks for your help

- #8

G01

Homework Helper

Gold Member

- 2,696

- 17

Anytime.

Share:

- Last Post

- Replies
- 1

- Views
- 472

- Replies
- 4

- Views
- 303

- Replies
- 23

- Views
- 838

- Last Post

- Replies
- 2

- Views
- 302

- Last Post

- Replies
- 3

- Views
- 700

- Last Post

- Replies
- 8

- Views
- 773

- Last Post

- Replies
- 9

- Views
- 1K

- Replies
- 16

- Views
- 1K

- Replies
- 2

- Views
- 364

- Replies
- 2

- Views
- 857