An alpha particle charge 2e mass 664 x 10-27 moves head-on
An alpha particle (charge +2e, mass 6.64 x 10^-27) moves head-on ata fixed gold nucleus (charge +79e). If the distance of closest approach is 2.0 x 10^-10m, what was the initial speed of the alpha particle?
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an alpha particle charge 2e mass 664 x 10-27 moves head-on ata fixed gold nucleus charge 79e if the distance of closest
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