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EvaBreezy
@EvaBreezy
April 2019
2
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Qui pourrait m'aider pour l'exercice 3? Merci.. :(
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SkyyNihnoJavi
5.0mg = 5.0x10-^3 G
5.0mg= 5.0x10-^6 KG
2 votes
Thanks 1
EvaBreezy
Merci, c'est pour le petit 1 et le petit 2 ?
SkyyNihnoJavi
je vais voir att
SkyyNihnoJavi
2) : tu fais 197 x Mp et le resultat est en KG
EvaBreezy
D'accord, merci
Commentaires (6)
Bonjour ,
1) -
m = 5 mg
m = 0,005 g
m = 0,000005 kg = 5 × 10⁻⁶
2)-
la masse = Z mp + (A-Z) mp
la masse = 79 × 1,67 × 10⁻²⁷ + (197 - 79) × 1,67 × 10⁻²⁷
la masse = 131,93 × 10⁻²⁷ + 118 × 1,67 × 10⁻²⁷
la masse = 131,93 × 10⁻²⁷ + 197,06 × 10⁻²⁷
la masse = 328,99 × 10⁻²⁷
la masse = 3,2899 × 10⁻²⁵
3 votes
Thanks 2
EvaBreezy
Merci beaucoup
EvaBreezy
Pas grave ;)
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Lista de comentários
5.0mg= 5.0x10-^6 KG
1) -
m = 5 mg
m = 0,005 g
m = 0,000005 kg = 5 × 10⁻⁶
2)-
la masse = Z mp + (A-Z) mp
la masse = 79 × 1,67 × 10⁻²⁷ + (197 - 79) × 1,67 × 10⁻²⁷
la masse = 131,93 × 10⁻²⁷ + 118 × 1,67 × 10⁻²⁷
la masse = 131,93 × 10⁻²⁷ + 197,06 × 10⁻²⁷
la masse = 328,99 × 10⁻²⁷
la masse = 3,2899 × 10⁻²⁵