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L43Q1: Periodic Motion Bookmark this page Periodic Motion 0.0/2.0 points (graded) U(x)/ E, - A E379 3 particles have the same potential energy U (x), but they have different total mechanical energies: E, E and E3. Which particles have an approximate simple harmonic motion? Check all that apply. The particle with total Mechanical Energy El. The particle with total Mechanical Energy E2. The particle with total Mechanical Energy Ez. Which of these particles undergo periodic motion? Check all that apply. The particle with total Mechanical Energy Ej. The particle with total Mechanical Energy E2. The particle with total Mechanical Energy Ez.