¡Hello!
Topic: Electrostatic
For calculate electric force, we can apllicate formula:
[tex]\boxed{\boxed{\bold{F = k * \frac{q*q'}{r^{2} } } } }[/tex]
[tex]\sqrt{[/tex] F = Electric Force
[tex]\sqrt{[/tex] k = Coulomb Constant = 9x10^9
[tex]\sqrt{[/tex] q = Charges = 1 C
[tex]\sqrt{[/tex] r = Distance = 3000 m
Let's replace according the information, and let's resolve it:
F = 9x10^9 * (1 * 1) / 3000²
F = 9x10^9 * 1 / 9000000
F = 9x10^9 * 1.1111111e-7
F = 1000 N
Result:
The electric force is of 1000 N
Good luck
