What Is the Momentum of an Electron Moving at a Speed

question 65

Multiple Choice

What is the momentum of an electron moving at a speed of 0.90 c? (m_e = 0.511 MeV/c² = 9.11 × 10^-31 kg)

• A) 3.1 × 10^-22 kg·m/s
• B) 2.5 × 10^-22 kg·m/s
• C) 5.6 × 10^-22 kg·m/s
• D) 4.4 × 10^-22 kg·m/s
• E) 2.5 × 10^-23 kg·m/s

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