What is the electric force on a proton 2.5 fm from the surface of the nucleus? hint: treat the spherical nucleus as a point charge?

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09-09-2017
Physics

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What is the electric force on a proton 2.5 fm from the surface of the nucleus? hint: treat the spherical nucleus as a point charge?

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TheProfessor4zzzFM TheProfessor4zzzFM · Answer 1 · 2017-09-09T08:20:05+02:00

In this case, you need the formula below where:

F = force
k = coulombs constant 8.99 x10^{9} N.m^{2} . C^{-2}
q1 = electric charge 1
q2 = electric charge 2
r = the distance between the charges

[tex]F = k((q1.q2)/r^{2}) [/tex]

pls note: make sure your units are correct (in meters etc, not fm (femto-meters)).

Curiously, this question doesn't tell you what atom you are next to the nucleus of. Different numbers of protons in the nucleus of the atom will make for vastly different forces in your answer...