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Physics, 10.03.2021 23:30 keiryporthillo

10.Une corde suspendue d'un plafond vibre à une fréquence de 440 Hz et est tendue par une masse de 100 g. En ajoutant un autre poids de masse inconnue
au bout de cette corde, la fréquence de vibration de la corde est doublée. Quelle
est la masse inconnue ?

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