An Electron Is Accelerated from Rest Through a Potential Difference

question 41

Multiple Choice

An electron is accelerated from rest through a potential difference of 50.0 kV.What is the speed of the electron? (c = 3.00 × 10⁸ m/s,e = 1.60 × 10^-19 C,m_el = 9.11 × 10^-31 kg)

• A) 1.24 × 10⁸ m/s
• B) 1.33 × 10⁸ m/s
• C) 3.24 × 10⁸ m/s
• D) 3.33 × 10⁸ m/s
• E) 4.12 × 10⁸ m/s

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