minutnaya strelka chasov za odin chas sovershaet polniy oborot. chemu Rovno lineynaya skorost kontsa strelki dlinnoy 5 cm
2)kakovi radiusi krivizni poverkhnost sobiraushey linzi s opticheskoy siloy 5dptr
3) kakoe kolichestvo electrichestva prokhodit cherez poperechnoe secheniye provodnika soprotivleniem 1kOm v techeniye 10s esli na konchakh provodnika podano napryajenie 200v
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