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Prosím pomůžete my moc tomu nerozumím? Děkuji.
narysuj úseku SA, aby SA=5cm. sestroj kružnici k(S, r=25cm).pomoci kruzitka vyžínač body B a C tak, aby ležely na kružnici k (Ab) =4cm a (AC) =3cm. Narysuj trojúhelník ABC.
a) Kolik vody musí protéct z pramene do jezírka aby se vysrážel 1 kg křemene? b) Kolik vody musí protéct z jezírka do potoka aby se vysrážel 1 kg křemene? c) Vyslětlete, k čemu potřebujeme znát…
Jak závisí napětí alternátoru a dynama na rychlosti otáčení? Co neustále mění střídavé napětí? Děkuji předem za odpověď
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