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Physics, 22.01.2021 02:20 pineapplepizaaaaa

1. Trei cantitati egale de apa cu temperaturile t 1 = 15 0 C, t 2 = 55 0 C, respectiv t 3 = 80 0 C sunt turnate intr-un vas pentru a obtine un apa calda. Se cere:
a) Temperatura apei calde obtinute, t e , neglijand pierderile de caldura

b) Temperatura apei calde obtinute, t e , daca 10% din caldura cedata este pierduta

c) Reprezentati grafic dependentele t = f(τ), in acelasi
sistem de axe, in conditiile punctului a), unde timpul
τ = 5 s, apoi precizati pe graficele obtinute cu (1), (2),
respectiv (3) carei mase de apa ii corespunde fiecare
grafic.

ma intereseaza cel mai mult la C

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Answers: 3

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1. Trei cantitati egale de apa cu temperaturile t 1 = 15 0 C, t 2 = 55 0 C, respectiv t 3 = 80 0 C s...
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