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【简答题】
设有N个粒子的系统,其速率分布如题图所示.求 (1)分布函数f(u)的表达式; (2)a与u0之间的关系; (3)速度在1.5u0到2.0u0之间的粒子数. (4)粒子的平均速率. (5)0.5u0到u0区间内粒子平均速率.
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