10 kg de apa rece cu temperatura de 20°C si se adauga apa fierbinte la temperatura de 60°C pentru a avea o temperatura finala a apei din vas la 30°C. Stiind ca : caldura specifica a apei este c a = 4180 J/kgK si capacitatea calorica a vasului este C vas = 1000 J?K, calculati cantitatea de apa fierbinte care trebuie adaugata.

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

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c is the answer

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c. 6tan80

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