1. Selon la loi de Coulomb, comment la force électrique entre deux charges varie-t-elle lorsque la distance qui les sépare double ?
2. Quelle est la valeur de la charge élémentaire e, selon le document?
3. Quelle caractéristique distingue la force gravitationnelle de la force électrostatique ?
Force de Coulomb — formule ?
F = k |q_A| |q_B| / d²
Charge électrique — unité?
Coulomb (C), e = 1×10⁻¹⁹ C
Force gravitationnelle — formule ?
F = G (m_A m_B) / d²
Particules fondamentales — exemples?
Neutrons, protons, électrons
Charge élémentaire — valeur ?
e = 1,60×10⁻¹⁹ C
Loi de Coulomb — force?
F = k|q₁ q₂|/d²
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