如图所示小球在竖直放置的光�圆形管道内做圆�运动内侧壁半径为r小球半径为r则下列说法正确的是 A.小球通过最高点时的最小速度 Template




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sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )


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tomski如图所示小球在竖直放置的光�圆形管道内做圆�运动内侧壁半径为r小球半径为r则下列说法正确的是 a.小球通过最高点时的最小速度 coloring