Find the charge of the sphere (q2)

  • Thread starter Thread starter NotInMrPutmansClass
  • Start date Start date
  • Tags Tags
    Charge Sphere
Click For Summary
The discussion focuses on calculating the charge of a sphere (q2) using a diagram and provided information. Participants suggest writing out the equation that represents the sum of the charges to clarify the problem. There is an emphasis on ensuring all relevant data is considered in the calculations. The conversation highlights the importance of visual aids in solving physics problems. Ultimately, the goal is to derive the unknown charge from the established relationships between the charges.
NotInMrPutmansClass
Messages
5
Reaction score
0
Homework Statement
Two small spheres (q1& q2) have different charges that add up to 5.0x10^-5 C. If they repel each other with a force of Fe = 1.0 N at a distance of 2.0 m apart, what is the charge on q2?
Relevant Equations
Electric force formula

Fe= (k*q1*q2)/r^2

Electric Field Formula

E=(k*q1)/r^2

where k is a constant 9x10^9 N*m^2/kg^2
I drew a diagram using all of the information

hw1.jpg


however, I am stuck and not to sure how to get one of the charges
 
Physics news on Phys.org
Try writing out the equation that says the charges add up to…

See if that gives you enough info.
 
Thread 'Chain falling out of a horizontal tube onto a table'

Thread 'Chain falling out of a horizontal tube onto a table'

My attempt: Initial total M.E = PE of hanging part + PE of part of chain in the tube. I've considered the table as to be at zero of PE. PE of hanging part = ##\frac{1}{2} \frac{m}{l}gh^{2}##. PE of part in the tube = ##\frac{m}{l}(l - h)gh##. Final ME = ##\frac{1}{2}\frac{m}{l}gh^{2}## + ##\frac{1}{2}\frac{m}{l}hv^{2}##. Since Initial ME = Final ME. Therefore, ##\frac{1}{2}\frac{m}{l}hv^{2}## = ##\frac{m}{l}(l-h)gh##. Solving this gives: ## v = \sqrt{2g(l-h)}##. But the answer in the book...
View full post »

Similar threads

Work done to insert a point charge 𝑞 at the center of a conducting sphere
  • · Replies 12 ·
Replies
12
Views
1K
Induced charge on a conducting sphere sliced by a plane
  • · Replies 2 ·
Replies
2
Views
1K
Ways of transferring charge between objects (conduction and induction)
  • · Replies 25 ·
Replies
25
Views
1K
Electric field external to Conducting Hollow Sphere with charge inside
  • · Replies 23 ·
Replies
23
Views
3K
Charge on a grounded conducting sphere in a uniform electric field, after ungrounding and movement
  • · Replies 1 ·
Replies
1
Views
1K
Charge density in sphere that makes constant radial E-field inside
  • · Replies 14 ·
Replies
14
Views
2K
The electric potential inside a conducting sphere with charge Q
  • · Replies 11 ·
Replies
11
Views
2K
Confusion on the distribution of charge
  • · Replies 7 ·
Replies
7
Views
2K
Understanding the Interaction Between a Charged Rod and a Metal Sphere
  • · Replies 6 ·
Replies
6
Views
2K
Why is the superposition principle valid here?
  • · Replies 5 ·
Replies
5
Views
831