有一“不倒翁”,形状可以简化成由半径为 R 的半球体与顶角为 74°的圆锥体组成(如图 6所示),它的重心在对称轴上.为使“不倒翁”在任意位置都能恢复竖直状态,则该“不倒翁”的重心到
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![有一“不倒翁”,形状可以简化成由半径为 R 的半球体与顶角为 74°的圆锥体组成(如图 6所示),它的重心在对称轴上.为使“不倒翁”在任意位置都能恢复竖直状态,则该“不倒翁”的重心到](/uploads/image/z/2232765-45-5.jpg?t=%E6%9C%89%E4%B8%80%E2%80%9C%E4%B8%8D%E5%80%92%E7%BF%81%E2%80%9D%2C%E5%BD%A2%E7%8A%B6%E5%8F%AF%E4%BB%A5%E7%AE%80%E5%8C%96%E6%88%90%E7%94%B1%E5%8D%8A%E5%BE%84%E4%B8%BA+R+%E7%9A%84%E5%8D%8A%E7%90%83%E4%BD%93%E4%B8%8E%E9%A1%B6%E8%A7%92%E4%B8%BA+74%C2%B0%E7%9A%84%E5%9C%86%E9%94%A5%E4%BD%93%E7%BB%84%E6%88%90%EF%BC%88%E5%A6%82%E5%9B%BE+6%E6%89%80%E7%A4%BA%EF%BC%89%2C%E5%AE%83%E7%9A%84%E9%87%8D%E5%BF%83%E5%9C%A8%E5%AF%B9%E7%A7%B0%E8%BD%B4%E4%B8%8A.%E4%B8%BA%E4%BD%BF%E2%80%9C%E4%B8%8D%E5%80%92%E7%BF%81%E2%80%9D%E5%9C%A8%E4%BB%BB%E6%84%8F%E4%BD%8D%E7%BD%AE%E9%83%BD%E8%83%BD%E6%81%A2%E5%A4%8D%E7%AB%96%E7%9B%B4%E7%8A%B6%E6%80%81%2C%E5%88%99%E8%AF%A5%E2%80%9C%E4%B8%8D%E5%80%92%E7%BF%81%E2%80%9D%E7%9A%84%E9%87%8D%E5%BF%83%E5%88%B0)
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