Modelová Otázka ID 2652 - 
Jak vysoko bude hladina kapaliny, pokud se 10 m3 rozlije na vodorovné ploše o rozloze 50 × 20 metrů s dostatečně vysokými stěnami do souvislé vrstvy?
Správná odpověď je: C
Kapalina se bude rozlévat v prostoru tvaru kvádru, pro jehož objem platí 
. Objem V je zadán, strany podstavy a a b také. Ze vzorce tak lze vypočítat výslednou výšku hladiny h jako 
. Po dosazení a následném převodu vyjde:
h = 10 m3/(50 · 20 m2) = 10/1 000 m = 0,01 m = 0,1 dm = 1 cm.
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