Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An impact model of the electrostatic force: Coulomb's law re-visited   The electrostatic force is described in this model by the action of electric
dipole distributions on charged particles. The individual hypothetical dipoles
are propagating at the speed of light in vacuum transferring momentum and
energy between charges through interactions on a local basis. The model is
constructed in analogy to an impact model describing the gravitational forces.

31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th