tolong jawab no 1 dan 4 beserta jawabnya lengkap diketahui ditanya dijawab

Nomor 1
q₁ = 3 C, q₂ = 4 C, q₃ = 2 C
r₁ = 3 m dan r₂ = 4 m

F₁ = kq₁q₂ / r₁²
     = (9 x 10⁹ Nm²/C²)(3 C)(4 C) / (3 m)² = 12 x 10⁹ N
F₂ = kq₁q₃ / r₂²
     = (9 x 10⁹ Nm²/C²)(3 C)(2 C) / (4 m)² = 3,375 x 10⁹ N
F = √(F₁² + F₂²)
   = √[(12 x 10⁹ N)² + (3,375 x 10⁹ N)²]
   ≈ 1,247 x 10¹⁰ N


Nomor 4
q₁ = 2 C dan q₂ = 4 C
r₁ = 6 m dan r₂ = 8 m

E₁ = kq₁ / r₁²
     = (9 x 10⁹ Nm²/C²)(2 C) / (6 m)² = 5 x 10⁸ N
E₂ = kq₂ / r₂²
     = (9 x 10⁹ Nm²/C²)(4 C) / (8 m)² = 5,625 x 10⁸ N
E = √(E₁² + E₂²)
   = √[(5 x 10⁸ N)² + (5,625 x 10⁸ N)²]
   = 5/8 √145 x 10⁸ N