Réponse :
Explications :
bonjour,
a) 1.2 * 10⁵ Gm = 1.2 * 10⁵ * 10⁹ = 1.2 * 1014 m, car 1Gm = 10⁹ m
b) 6.4 * 10⁻² pm = 6.4 * 10⁻² * 10⁻¹² = 6.4 * 10⁻¹⁴ m, car 1 pm = 10⁻¹² m
c) 6.8 * 10⁻⁶ mm = 6.8 * 10⁻⁶ * 10⁻³ = 6.8 * 10⁻⁹ m car, 1 mm = 10⁻³ m
d) 3.4 * 10² Tm = 3.4 * 10² * 10¹² = 3.4 * 10¹⁴ m, car 1 Tm = 10¹² m
