@yosh_ustozlar pisa 8 sinf fizika
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test.8-sinf. 1.tinch holatdan to’g’ri chiziqli tekis tezlanuvchan harakat qila boshlagan jism 10-sekundda 7-sekunddagiga nisbatan 6m ko’proq masofa bosib o’tgan bo’lsa , mazkur harakatning tezlanishi va 20-sekunddagi bosib o’tgan yo’lini toping? a)a=2.5m/s2 s=45m b)a=2m/s2 s=39m c)a=5m/s2 s=45m d)a=0.2m/s2 s=5m 2.erkin tushayotgan jism oxirgi 2sekundda 98m masofani bosib o’tgan bo’lsa u qanday balandlikdan tusha boshlagan? a)250m b)180m c)176.4m d)150m 3.10m balandlikdan koptokni vertical ravishda pastga 14m/s tezlik bilan otildi .yerga urilib qaytgach koptok qancha balandlikka ko’tariladi? a)50m b)25m c)30m d)20m 4.yuzi 1m2 qalinligi 30sm bo’lgan muz parchasi qancha yuk ko’tara oladi?muzning zichligi 900kg/m3 a)30kg b)50kg c)25kg d)35kg 5.yassi kondensator 1500vgacha zaryadlanganda unda h...
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