Предмет: Физика, автор: opacha857

Помогите пожалуйста решить

На каком расстоянии заряды 8 нано Кулон и -40 нано Кулон притягиваются с силой 5 мили Ньютон?
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Ответы

Автор ответа: ptitschkiyaitschki
1

Ответ:

2.4 см

Объяснение:

F_e =k \frac{|q_1| |q_2|}{r^2}\\r = \sqrt{k \frac{|q_1| |q_2|}{F_e}}\\r = \sqrt{9*10^9 \frac{|8*10^{-9}| |-40*10^{-9}|}{5*10^{-3}}}\\\\r = 2.4 cm

opacha857: Спасибо огромное)
ptitschkiyaitschki: Всегда пожалуйста
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II. Choose the right sentence.
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