7-sinf Fizika olimpiada №2

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7-sinf Fizika olimpiada №2

07.12.2022 yil oo.uzedu.uz  

Online olimpiada savollari!

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Elektr zaryadini (+) va (-)belgisi bilan belgilashni kim taklif etgan?

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18 g suvda nechta neytron bor? ??=6·1023 mol-1

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