The Figure Shows Two Tiny 5

question 7

Multiple Choice

The figure shows two tiny 5.0-g spheres suspended from two very thin 1.0-m-long threads. The spheres repel each other after being charged to +91 nC and hang at rest as shown. What is the angle θ? (k = 1/4πε₀ = 8.99 × 10⁹ N ∙ m²/C²)

• A) 4.1°
• B) 8.2°
• C) 12°
• D) 16°

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