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Dobrý deň, vedel by mi niekto pomôct sa nasledovnou úlohou? Neviem si rady ako postupovať. Dakujem velmi pekne.
Aká veľká vztlaková sila pôsobí na ponorku s objemom 30 m3, ak je celá ponorená pod hladinou mora? Hustota morskej vody je 1 030 kg/m3.
a) – Katka mala dve rovnorodé kocky s hmotnosťou 700g. Jedna kocka bola z duralu a druhá z medi. Obidve kocky ponorila celé do nádoby s vodou. Na ktorú kocku pôsobila väčšia vztlaková sila? b) –…
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