Electrostatics coulomb's law problem

AI Thread Summary
To solve the problem of finding the r value for three charges using Coulomb's law, it's essential to clarify whether "three points" refers to three charges. The relevant equation is f=Kqq/r^2, which describes the force between two charges. The concept of superposition is crucial when analyzing multiple charges, as it allows for the calculation of the net force acting on a charge due to others. A clear and specific problem statement is necessary for further assistance. Understanding these principles will aid in accurately determining the distances involved.
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Homework Statement


how to use coulomb's law to find the r value of the three points when the total distance is 50 cm


Homework Equations



f=Kqq/r^2

The Attempt at a Solution



i assumed that is it was uniform and sais r1+r2=r3 but now i think that is wrong
 
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By "three points" do you mean "three charges" ? There is one key concept you must use when dealing with charges, that is the concept of superposition.
 
meme06 said:

Homework Statement


how to use coulomb's law to find the r value of the three points when the total distance is 50 cm


Homework Equations



f=Kqq/r^2

The Attempt at a Solution



i assumed that is it was uniform and sais r1+r2=r3 but now i think that is wrong

We cannot help you without a clear statement of the problem you are trying to solve.
 

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