Proton is moving at an alpha particle, distance when it stops

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Homework Help Overview

The problem involves a proton being aimed at a fixed alpha particle, with the goal of determining how close the proton will come before stopping. The context is rooted in electrostatics and energy conservation principles.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the relationship between kinetic energy and electric potential energy, specifically questioning whether the equation Ek=Ee is applicable. There is an exploration of relevant equations such as kinetic energy (1/2mv^2) and electric potential energy (kq/r).

Discussion Status

Some participants have provided guidance on the conservation of energy principle, indicating that the basic idea of equating kinetic and electric potential energy is on the right track. However, further elaboration on the conservation rule is suggested.

Contextual Notes

Participants are navigating through the relevant equations and concepts without reaching a definitive conclusion. There is an emphasis on clarifying the conservation principles involved in the problem.

niveda
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Homework Statement


an alpha particle with a charge of 2e is fixed at the origin. a proton is aimed at the alpha particle and shot from a distance of 2.00 m at a speed of 3.46x10^6 m/s. How close will the proton come to the alpha particle before coming to a stop?

Homework Equations


Please help I need to know this for my test!

The Attempt at a Solution


Ek=Ee (maybe ?) [/B]
 
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A plea for help is not a relevant equation. Follow through on your suggested solution approach: What equations are relevant here?
 
So is it correct that Ek=Ee?
If that's the case then 1/2mv^2 and kq/r^2 would be relevant
 
niveda said:
So is it correct that Ek=Ee?
The basic idea is correct. You'll have to expand on it though; What conservation rule is involved?
If that's the case then 1/2mv^2 and kq/r^2 would be relevant
Yes.
 

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