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Gabi1410
@Gabi1410
May 2019
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Bjr, quelqu’un peut me faire mes derniers exercices de mon dm svp ? merci d’avance
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Ex. 3 :
Il faut convertir ces vitesses dans la même unité pour pouvoir les comparer.
1 heure = 60 minutes = 3 600 s
donc : 1,07 km/m = (1,07×60) km/h = 64,2 km/h
12,5 m/s = (12,5×3600) m/h = 45 000 m/h = 45 km/h
20 m/s = (20×3600) m/h = 72 000 m/h = 72 km/h
72 > 64,2 > 51 45
donc : Elan - Zèbre - Girafe - Elephant
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gabi1410
Merci, tu ne saurais pas m’aider pour le 4?
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Lista de comentários
Il faut convertir ces vitesses dans la même unité pour pouvoir les comparer.
1 heure = 60 minutes = 3 600 s
donc : 1,07 km/m = (1,07×60) km/h = 64,2 km/h
12,5 m/s = (12,5×3600) m/h = 45 000 m/h = 45 km/h
20 m/s = (20×3600) m/h = 72 000 m/h = 72 km/h
72 > 64,2 > 51 45
donc : Elan - Zèbre - Girafe - Elephant