How to find the force of particles

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Homework Help Overview

The problem involves calculating the force between two charged particles, one positive and one negative, each with a specified charge magnitude and separated by a given distance. The context is rooted in electrostatics and Coulomb's law.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the meaning of symbols in the relevant equations, particularly focusing on Coulomb's law. There is uncertainty about how to apply the equations correctly, as well as questions regarding the interpretation of the variables involved.

Discussion Status

The discussion is ongoing, with participants attempting to clarify the definitions of the variables in the equations. Some have provided insights into the constants and the relationships between the charges, while others express confusion about the application of the formulas.

Contextual Notes

There is a noted lack of clarity regarding the placement of values in the equations and the interpretation of the results, indicating that further exploration of these concepts is necessary.

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Homework Statement



A positive and a negative charge, each of magnitude 1.9 multiplied by 10^-5 C, are separated by a distance of 11 cm. Find the force on each of the particles.


Homework Equations



F = kq^2/r^2
r = sqrt(kq1q2/F)


The Attempt at a Solution


i'm not sure which numbers are placed where in each equation :(
 
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Can you start by explaining what each of the symbols in the first equation mean?
 
r stands for culomb's law(?), and I'm not quite sure about the others..
 
r stands for radius which is the distance between the two charges.
k is the columbs constant = 9x10^9
q represents the charges. We actually ignore if its positive or negative at this point so we can say q^2
normally it would be (q1)(q2) / r^2





A positive and a negative charge, each of magnitude 1.9 multiplied by 10^-5 C, are separated by a distance of 11 cm. Find the force on each of the particles.

F = kq^2/r^2 = (9 x 10^9) [(1.9 x 10^-5)^2 / (.11 m)^2)]

that should be the force of attraction between the two
so the force on one of the charges should point in the direction of the other charge
the force on the other charge should point towards the first charge. They should
both be of equal value other than positive and negative.
 

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