- #1
Randell Julius
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Homework Statement
An alpha particle approaches at high speeds a gold nucleus with a charge of 79e. What is the electric force acting on the alpha particle when it is 2.0e-17 m from the gold nucleus?
Homework Equations
FE=k(q1q2)/d2
The Attempt at a Solution
FE=k(q1q2)/d2
FE=9e9((2e)(79e))/(2.0e-17)2
FE=9.1e7 N
The answer in the back of the book says that it is 9.1 e -12 N.
Not sure where I went wrong.