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Kolik l CO2 vznikne vypálením 100kg vápence CaCO3 dále vznikne oxid vápenatý (Aca=40, Ac=12, Ao=16)
Dobrý den, mohl byste místo někdo prosím vysvětlit? Děkuji. Ve vrcholech A, D čtverce ABCD o straně 20 cm jsou umístěny stejné bodové náboje + 100nC a ve vrcholu B je náboj – 100nC. Určete…
Deska tvaru pravoúhlého trojúhelníku o odvěsnách 0,5m a 0,3m je otáčivá kolem osy kolmé k desce a jdoucí vrcholem A. Ve vrcholu B působí síla 7N svisle vzhůru, ve vrcholu C síla 10N…
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