February 21, 2017

Homework Help: physics

Posted by michelle on Wednesday, January 12, 2011 at 11:16am.

Point A is at a potential of +250 V, and point B is at a potential of -150 V. An á-particle is a helium nucleus that contains two protons and two neutrons; the neutrons are electrically neutral. An á-particle starts from rest at A and accelerates toward B. When the á-particle arrives at B, what kinetic energy (in electron volts) does it have?

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