什么是参量?参量(数)如何设置?“参”是什么意思?“参”是大前提!
回答: 动量:运动物体的质量和速度的乘积叫做动量.P=mv, 动量的大小与速度大小成正比,动能的大小与速度的大小平方成正比
由 marketreflections
于 2011-08-12 13:59:08
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