Le noyau de l'atome de radium 226 a pour dimension 2,3 × 10-15 m. a) Quelle unité correspond à 10-15 m

By: USER8188
27 Agustus 2025 physique-chimie 5 minutes
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Question

Grade: Education Subject: physique-chimie
Le noyau de l'atome de radium 226 a pour dimension 2,3 × 10-15 m. a) Quelle unité correspond à 10-15 m
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Slt
L'unité qui correspond à 10-15 m est le femtomètre (fm). C'est une unité de mesure utilisée pour exprimer de très petites distances, notamment dans le domaine de la physique nucléaire.
Answered on 27 Agustus 2025

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Bonjour,pourriez-vous m'aider s'il vous plaît

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Orchidées: tous les 9 jours
Ficus: tous les 6 jours
Bambous: tous les 5 jours
Valérie arrosé toutes ses plantes le lundi 1er février 2016 et le note sur un calendrier.
A quelle date arrosera-telle à nouveau les trois plantes en même temps?

S'il vous plaît au plus vite :(
Merci d'avance :)

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Bonjour je n'arrive pas a resoudre le probleme :

bilal occupe sa journée de dimanche :
1/4 a se reposer ; 2/3 a jouer au foot aves ses copains ; 1/12 sur internet et le reste a travailler.
jai fait : 1journee = 24 h

24 x 3 : 4 = 6heures a se reposer
6h - 24h = 18h
18 x 2 : 3 = 12h a jouer au foot
18h-12h = 6h
6h x 1 : 12 = 0.5
6h - 0.5 ( 30mn) = 5.50
il travaille pendant 5h30

c'est bon ou pas ??,

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