gc textbook chapter 7 Linear Momentum (id: 1ea9f8d5b)

本题目来源于试卷: gc textbook chapter 7 Linear Momentum，类别为 通用国际物理

[填空题]
An atomic nucleus initiall . kg8e.vn;sa(yj,a twox*rk7y moving at 420m/s em1--iq i y16((cnmt vwhndrta1its an alpha particle in the direction of its velocity, and the remaining nucleus slows to 350m/s If the alpha particle has a mass of 4.0 u and the original nucleus has a h- itqimw-n6dr 1nv (1cta1y(mass of 222 u, what speed does the alpha particle have when it is emitted?    m/s

参考答案: 4200±2%


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