能量为什么是标量?比如说动能为啥为标量?物体的运动是有方向的呀?虽然从动能的数学表达式:E=1/2mv^2来看,动能确实是标量,但物体的运动却是有方向的,也就是说运动的物体对另一个物体做
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 06:05:14
![能量为什么是标量?比如说动能为啥为标量?物体的运动是有方向的呀?虽然从动能的数学表达式:E=1/2mv^2来看,动能确实是标量,但物体的运动却是有方向的,也就是说运动的物体对另一个物体做](/uploads/image/z/14656509-45-9.jpg?t=%E8%83%BD%E9%87%8F%E4%B8%BA%E4%BB%80%E4%B9%88%E6%98%AF%E6%A0%87%E9%87%8F%3F%E6%AF%94%E5%A6%82%E8%AF%B4%E5%8A%A8%E8%83%BD%E4%B8%BA%E5%95%A5%E4%B8%BA%E6%A0%87%E9%87%8F%3F%E7%89%A9%E4%BD%93%E7%9A%84%E8%BF%90%E5%8A%A8%E6%98%AF%E6%9C%89%E6%96%B9%E5%90%91%E7%9A%84%E5%91%80%3F%E8%99%BD%E7%84%B6%E4%BB%8E%E5%8A%A8%E8%83%BD%E7%9A%84%E6%95%B0%E5%AD%A6%E8%A1%A8%E8%BE%BE%E5%BC%8F%EF%BC%9AE%3D1%2F2mv%5E2%E6%9D%A5%E7%9C%8B%2C%E5%8A%A8%E8%83%BD%E7%A1%AE%E5%AE%9E%E6%98%AF%E6%A0%87%E9%87%8F%2C%E4%BD%86%E7%89%A9%E4%BD%93%E7%9A%84%E8%BF%90%E5%8A%A8%E5%8D%B4%E6%98%AF%E6%9C%89%E6%96%B9%E5%90%91%E7%9A%84%2C%E4%B9%9F%E5%B0%B1%E6%98%AF%E8%AF%B4%E8%BF%90%E5%8A%A8%E7%9A%84%E7%89%A9%E4%BD%93%E5%AF%B9%E5%8F%A6%E4%B8%80%E4%B8%AA%E7%89%A9%E4%BD%93%E5%81%9A)
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