Electrostatic Force: Learn About Its Effects

AI Thread Summary
The discussion focuses on calculating the electrostatic forces between three charges, q1, q2, and q3, using Coulomb's law. The user presents their calculations, stating that the force between q1 and q3 is -1.125N, while the force between q1 and q2 is 3.5N. There is a request for feedback on the calculations and clarity on the next steps. The conversation emphasizes the importance of showing work in physics problems for accurate assistance. Overall, the thread highlights the application of electrostatic principles in problem-solving.
jayryap
Messages
5
Reaction score
0
electrostatic force!

Homework Statement




http://img10.imageshack.us/img10/3914/picture0117.jpg

Homework Equations





The Attempt at a Solution

 
Last edited by a moderator:
Physics news on Phys.org


Hi Jayryap,

Welcome to PF. Please show your attempt.
 


please help me ... i don't know what to do next...

am i correct with my work?

thank you very much!
 
Last edited:


I'm unable to read the pictures!
 


a)the forces between q1 and q3
F = k * (q1 * q3/d13^2)
k = (1/4πεo) = 9 * 10^9 Nm^2/C^2 and d13= 20 cm = 20 * 10^-2 m
F=-1.125N
b)the force between charges q1 and q3 is
F1 = k * (q1 * q3/d13^2)
= -1.125N
the force between charges q1 and q2 is
F2 = k * (q1 * q2/d12^2)
=3.5N
 
Thread 'Help with Time-Independent Perturbation Theory "Good" States Proof'

Thread 'Help with Time-Independent Perturbation Theory "Good" States Proof'

(Disclaimer: this is not a HW question. I am self-studying, and this felt like the type of question I've seen in this forum. If there is somewhere better for me to share this doubt, please let me know and I'll transfer it right away.) I am currently reviewing Chapter 7 of Introduction to QM by Griffiths. I have been stuck for an hour or so trying to understand the last paragraph of this proof (pls check the attached file). It claims that we can express Ψ_{γ}(0) as a linear combination of...
View full post »

Similar threads

Finding the electrostatic potential of a square sheet.
Replies
3
Views
2K
Are longitudinal magnetic waves possible?
Replies
7
Views
2K
Electrostatic Energy in the Hydrogen Atom
Replies
4
Views
4K
Why is source force + electrostatic force = 0 inside battery?
Replies
10
Views
2K
I Electrostatic force exerted on an electron inside a nucleus
Replies
19
Views
2K
Potential Difference & Force on Electrostatic Sphere
Replies
1
Views
2K
Does This Expression Represent an Electrostatic Field?
Replies
7
Views
2K
Effect of negative electrostatic potential on infinite wire?
Replies
2
Views
1K
Find the electrostatic interaction energy between the dipole
Replies
1
Views
2K
How to understand the direction of tension in a charged closed ring?
Replies
11
Views
764

Hot Threads

Recent Insights

Back
Top