Post Info TOPIC: galaksies
nikos

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galaksies
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tha ithela ti boiheia sas parakalw.. kapou diavasa oti i taxitita peristrofis twn galaksiwn einai megaliteri ap'oi anamenetai apo tis eksiswseis kinisis tou neytwna. diladi peristrefontai grigorotera ap oti problepetai pragma pou simainei oti yparxei skoteini yli pithanon. Ithela na rwtisw loipon gia poia taxitita peristrofis milame? enos tmimatos toy galaksia mazas, as poume, simeiakis mazas m (px enos astrou) poy peristrefetai me epitroxia taxitita peri toy kentrou tou galaksia mazas M? kai episis i taxitita peristrofis mporei na brethei xondrika apo ti sxesi u=sqrt(GM/r)?

euxaristw

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