(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The oxygen nucleus 16O has a radius of 2.91 fm. With what speed must a proton be fired toward an oxygen nucleus to have a turning point 1.11 fm from the surface?

2. Relevant equations

Kinetic energy = 1/2 mv^2

Potential energy = 1/4(pi)Enot * q/radius min

3. The attempt at a solution

I combined the two above equations as follows:

1/4(pi)Enot * q/radius min = 1/2 mv^2

9x10^9 (1.602x10^-19)/(1.11x10^-15 m) = 1/2 (9.109x10^-31)v^2

1.688x10^18 m/s = v

The above answer was incorrect. I have roughly 31 hours to solve this question until it is due. Can someone please tell me if the equations I am using are wrong and which equations I should be looking at?

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Nuclear model of Atom, O2 nucleus and speed at which a proton must be fired toward it

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