Question

На якій відстані перебувають один від одного точкові заряди 2 нКл і 8 нКл, якщо сила їх взаємодії дорівнює 9мН? умоляю , срочно ​

Answer 1

Ответ: 4*10^-10

Объяснение:за законом Кулона

9*10^-3=9*10^-5* (2*10^-9*8*10^-9/r²)

r=√1,6*10^-19= 4*10^-10

Answer 2

Calculating the Distance Between Point Charges

To calculate the distance between two point charges given their interaction force, we can use Coulomb's law, which states that the force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

The formula for Coulomb's law is:

F = k * |q1 * q2| / r^2

Where: - F is the force between the charges, - k is Coulomb's constant (approximately 8.99 x 10^9 Nm^2/C^2), - q1 and q2 are the magnitudes of the two charges, and - r is the distance between the charges.

Calculation

Given: - Charge 1 (q1) = 2 nC (nanocoulombs) - Charge 2 (q2) = 8 nC (nanocoulombs) - Force (F) = 9 mN (millinewtons) = 9 x 10^-3 N

We can rearrange Coulomb's law to solve for the distance r:

r = sqrt(k * |q1 * q2| / F)

Substitute the given values: r = sqrt((8.99 x 10^9 Nm^2/C^2) * |2 x 10^-9 C * 8 x 10^-9 C| / (9 x 10^-3 N))

Calculating the distance: r ≈ sqrt((8.99 x 10^9) * (16 x 10^-18) / (9 x 10^-3))

r ≈ sqrt(143.84 / 0.009)

r ≈ sqrt(15982.22)

r ≈ 126.5 meters

Conclusion

The distance between the point charges of 2 nC and 8 nC, given their interaction force of 9 mN, is approximately 126.5 meters.