
#1
Mar2809, 07:10 PM

P: 14

1. The problem statement, all variables and given/known data
A particle with charge −9 μC is located on the xaxis at the point 8 cm, and a second particle with charge 5 μC is placed on the xaxis at 6 cm. The Coulomb constant is 8.9875 × 109 N · m2/C2. What is the magnitude of the total electrostatic force on a third particle with charge 2 μC placed on the xaxis at −2 cm? Answer in units of N. 2. Relevant equations Coulomb's Law f_{e} = (kq_{1}q_{2})/(d^{2}) 3. The attempt at a solution (8.9875e9 * 2e6 * 5e6) / (0.08^2) = 14.04296875 (8.9875e9 * 5e6 * 9e6) / (0.02^2) = 983.0078125 14.04296875 + 983.0078125 = 997.0507813 magnitude 997.0507813 Why is this wrong? What can I do to make it right? 



#3
Mar2809, 08:55 PM

P: 14

Thank you so much!



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