sisi9969 sisi9969
  • 11-10-2022
  • Physics
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La longueur de deux barres métalliques l’une de fer et l’autre de cuivre , est de 100cm à 0 C on chauffe jusqu’à ce qu’elles diffèrent de 0,06 cm . A) quelle est alors leur température ? B) calculer la longueur de la barre de fer

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