Coulomb's Law and net electric field

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Homework Help Overview

The problem involves calculating the net electric field produced by two point charges, both of which are negative, at specific points in space. The context is rooted in electrostatics and Coulomb's Law.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the electric force on a proton based on the net electric field but expresses uncertainty about their method for the last part of the problem. Some participants question the approach taken and suggest that there may be a misunderstanding related to the units involved.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the calculations. Some guidance has been offered regarding the significance of the units in the electric field, but no consensus has been reached on the correct approach to the final part of the problem.

Contextual Notes

The original poster has provided specific values for the charges and distances involved, but there may be assumptions about the setup or calculations that are not fully articulated. The problem also involves determining the direction of forces, which may require further clarification.

yb1013
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Homework Statement



Two point charges q1 = -5.60 nC, and q2 = -14.0 nC are separated by 25.0 cm (see figure below).

http://www.webassign.net/yf12/21-p-031-alt.gif

(a) Find the net electric field these charges produce at point A
magnitude 10360 N/C
direction is to the right

(b) Find the net electric field these charges produce at point B.
magnitude 6068.6 N/C
direction is to the right

(c) What would be the magnitude and direction of the electric force this combination of charges would produce on a proton at A?
magnitude ______ N
direction is to the right


The Attempt at a Solution


Okay well you can see that I figured out all of the answers except for the last magnitude, it seems to be really easy but I think I am just doing something little wrong, not sure.
Can someone please help with what I have to do?
Thank you!
 
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There is a strong hint in the units of the electric field you calculated: Newtons per Coulomb.
 
I'm still not quite sure where you're going with that. I tried a couple things but I ended with the wrong answer..
 
What did you try?
 

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