What is the relativistic kinetic energy of an electron moving at a speed of 1.50 x 10⁸m/s? (electron mass is 9.11 x 10^-31 kg and c = 3.00 x 10⁸m/s) A)1.27 x 10^-14 J B)7.10 x 10^-14 J C)9.47 x 10^-14 J D)11.6 x 10^-14 J

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Quizplus · Accepted Answer

The relativistic kinetic energy is calculated using the formula KE = (γ - 1)mc², where γ = 1/√(1 - v²/c²). For v = 1.50 x 10⁸ m/s, γ ≈ 1.0607. Substituting the values, KE ≈ 1.27 x 10⁻¹⁴ J.

What Is the Relativistic Kinetic Energy of an Electron Moving