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April 25, 2014

Homework Help: physics

Posted by alexis on Monday, September 29, 2008 at 1:15am.

An alpha particle, the nucleus of a helium atom, is at rest at the origin of a Cartesian
coordinate system. A proton is moving with a velocity of v towards the alpha particle
from the positive x axis direction. If the proton is initially far enough away to have no
potential energy, how close does the proton get to the alpha particle? Your answer
should be in terms of v, mp (mass of a proton), e (charge of a proton).

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