An Electron Is Sent at High Speed Toward a Gold

question 50

Multiple Choice

An electron is sent at high speed toward a gold nucleus (charge +79e) .What is the electrical force acting on the electron when it is 3.4 × 10−¹⁴ m away from the gold nucleus? (e = 1.6 × 10−¹⁹ C,k_e = 8.99 × 10⁹ N·m²/C²)
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• A) 16 N
• B) 1.57 N
• C) 1.6 × 10−⁴ N
• D) 1 × 10−⁶ N
• E) ​12.4

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