20.Тепловое действие тока. Закон Джоуля–Ленца - Физика 8 класс #20 - Инфоурок
7 months ago 00:29:01 1
7 months ago 00:15:38 1
7 months ago 00:38:39 1
8 months ago 01:10:41 6
10 months ago 00:33:55 1
10 months ago 00:16:50 1
10 months ago 02:36:01 1
10 months ago 00:03:46 1
10 months ago 02:24:27 1
11 months ago 00:00:00 1
11 months ago 00:32:18 1
11 months ago 00:08:16 1
11 months ago 00:02:29 1
11 months ago 00:28:41 1
11 months ago 00:09:23 1
12 months ago 00:04:17 1
12 months ago 00:01:27 1
12 months ago 03:02:29 1
1 year ago 00:11:36 1
1 year ago 07:22:21 8
1 year ago 00:00:37 1
1 year ago 00:04:38 1
1 year ago 04:11:07 1
1 year ago 00:26:32 1
