Answer:
1.575 N
Explanation:
Given that,
Charge on a PVC pipe, q₁ = -0.0000007 C
Charge on a positively charged sweater, q₂ = 0.0000009 C
Separation between charges, d = 6 cm = 0.06 m
We need to find the magnitude of the force between charges. The force between two charges is given by :
[tex]F=\dfrac{kq_1q_2}{r^2}\\\\F=\dfrac{9\times 10^9\times 0.0000007 \times 0.0000009 }{(0.06)^2}\\\\F=1.575\ N[/tex]
So, the electrostatic force has a magnitude of 1.575 N.