• 2022-07-26
    将个静止质量为 m0 静止加速到速率多为 0.6c 所需做的功为
    A: [img=69x25]1802d09793be76b.png[/img]
    B: [img=60x25]1802d0979b925e3.png[/img]
    C: [img=69x25]1802d097a482102.png[/img]
    D: [img=69x25]1802d097adaaa6a.png[/img]
  • 举一反三