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Vedel by mi s tým niekto pomôcť?
Vzduchová bublinka na dne jazera v hĺbke 21 m má pri teplote 4 °C polomer 1cm. Pomaly stúpa na povrch, pričom sa jej objem zväčšuje. Vypočítajte, aký bude jej polomer, keď dosiahne povrch jazera, ktorý má teplotu 27 °C. Povrchové napätie neberte do úvahy. Atmosferický tlak je 105 Pa.
Výsledok by mal byť r= 1,5 cm
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