Question

how far apart the two protons be,if the force between them equals the weight of an electronn​

Answer 1

Answer:

9×10⁹ ×(1.6 × 10⁻¹⁹)² ÷ r² = 9.1 × 10⁻³¹

⇒r =  $\sqrt{\frac{9×10⁹ ×(1.6 × 10⁻¹⁹)²}{9.1 × 10⁻³¹} }$

     =  15.91  (m)