With what velocity should an `alpha`- particle travel towards the nucleus of a copper atom at a distance of `10^(-13)m` from the nucleus of the copper atom?

With what velocity should an alpha - particle travel toward the nucleus of a copper atom at a distance of 10^(-13)m from the nucleus of the copper atom ?

With what velocity should as alpha - particle travel toward the nucless of a copper atom at a distance of 10^(13)m from the nucless of the copper atom ?

With what velocity should an alpha paricle towards the nucless of a copper atom so as to errive at a distance 10^(-3)m from the nucless of the copper atom ?

In the Rutherford's experiment, a particles were bombarded towards the copper atoms so as to arrives a distance of 10^(-13) metre from the nucleus of copper and then getting either deflected or traversing back. The a-particles did not move further closer The velocity of the a-particles must be

In the Rutherford's experiment, a particles were bombarded towards the copper atoms so as to arrives a distance of 10^(-13) metre from the nucleus of copper and then getting either deflected or traversing back. The a-particles did not move further closer It can also be concluded that the electrostatic potential energy is equal to

The particles present in the nucleus of an atom are-