combien de tours fait la terre en 30 sec​

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Grade: Education Subject: brevet
combien de tours fait la terre en 30 sec​
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Bonjour;

24h pour faire un tour complet

24 h = 24*60*60=> 86 400s

86 400 -> 1 tour

1s -> 1/ 86 400

30s -> 30/86 400

=> 0,00035 tours  en 30s