Предмет: Физика, автор: annkuznecova22012009

Як взаємодіють два заряди-2 мкКл і +4 мкКл на відстані 4 см?

Ответы

Автор ответа: Electrizeti

1

Ответ:

Ответ: 45Н

Объяснение:

Дано:

q₁ = -2 мкКл = -2· $10^{-6}$ Кл

q₂ = 4 мкКл = 4· $10^{-6}$ Кл

r = 4 см = 4·10⁻² м

____________

F - ?

По закону Кулона:

F = k·q₁·q₂ / r²

F = 9·10⁹·2· $10^{-6}$ ·4· $10^{-6}$ / (4·10⁻²)² = 45Н

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