Answer 5_5_1

 Use Coulomb’s Law (Module 4) to work out the force of repulsion between two protons 1 ´ 10-15 m apart.  Comment on your result.                                      

 

F = 9 ´ 109 x Q1 ´ Q2 = 9 ´ 109 ´ 1.6 ´ 10-19 ´ 1.6 ´ 10-19  (P)

                            r2                                     (1 ´ 10-15)2

 

 

F = 230 N (P)

 

On a nuclear scale this is a pretty large force (P).

 

 

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