A proton is fired from far away toward the nucleus of an iron atom. Iron is element number , and the diameter of the nucleus is . What initial speed does the proton need to just reach the surface of the nucleus? Assume the nucleus remains at rest.
The initial speed does the proton need to just reach the surface of the nucleus is
Iron is element number :
Diameter of the nucleus is :
Theory used :
We can deduce from the law of conservation of energy that all kinetic energy will be converted to electric potential energy.
As a result,
We may express the speed from here as :
We can find the speed to be v2 by substituting our numerical numbers.
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