如图所示人造地球卫星在椭圆轨道上运动当卫星由a点运动到b点的过程中人造卫星的动能ek和势能ep的变化规律是 A.ek增大ep减小b Template




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tomski如图所示人造地球卫星在椭圆轨道上运动当卫星由a点运动到b点的过程中人造卫星的动能ek和势能ep的变化规律是 a.ek增大ep减小b coloring