1. Jan 25, 2007 #1

   thildebr

   

   1. The problem statement, all variables and given/known data
   an alpha particle (charge=+2.0e) is sent at high speed toward a gold nuclues Charge= +79e. What is the electrical force acting on the alpha particle when it is 2.0 times 10^ -14m away from the gold nucleus
   
   
   2. Relevant equations
   
   
   
   3. The attempt at a solution
   
   its 91 N but i need the steps of how i got the answer

    

   thildebr, Jan 25, 2007
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3. Jan 25, 2007 #2

   ranger

   

   Gold Member

   Ever heard of Coulomb's law?

    

   ranger, Jan 25, 2007
4. Jan 25, 2007 #3

   cristo

   

   Staff Emeritus

   Science Advisor

   Welcome to PF, thildebr. Please note that for homework questions, we require you to show your working before we can help you. Also, in future, please make the title relevant to the question in the thread-- this will enable us to help you quicker!
   
   As for the question, follow ranger's hint.

    

   cristo, Jan 25, 2007

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