Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: About forces, acting on radiating charge   It is shown, that the force acting on a radiating charge is stipulated by two
reasons - owing to exchange of a momentum between radiating charge and
electromagnetic field of radiation, and also between a charge and field
accompanying the charge.

15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con