A particle,rest mass m,moves with a certain speed.After totally inelastic collision with an identical particle at rest,a new particle,with rest mass M,is produced.The kinetic energy of original particle is 一个粒子的静质量是m,以一定的速
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A particle,rest mass m,moves with a certain speed.After totally inelastic collision with an identical particle at rest,a new particle,with rest mass M,is produced.The kinetic energy of original particle is 一个粒子的静质量是m,以一定的速
A particle,rest mass m,moves with a certain speed.After totally inelastic collision with an identical particle at rest,a new particle,with rest mass M,is produced.The kinetic energy of original particle is
一个粒子的静质量是m,以一定的速度运动。它和另一个完全相同的静止粒子发生了完全非弹性碰撞，产6生了一个质量为M的新粒子，那么原来粒子的动能是多少？
A.(M^2-4m^2)/(2m)*c^2 B.(4m^2-M^2)/(2m)*c^2 C.(2m^2-M^2)/m*c^2 D.(M^2-2m^2)/m*c^2
A particle,rest mass m,moves with a certain speed.After totally inelastic collision with an identical particle at rest,a new particle,with rest mass M,is produced.The kinetic energy of original particle is 一个粒子的静质量是m,以一定的速
碰撞后部分动能转化为质量,该部分能量e=(M-2m)c^2 ,其中c为光速
1/2 mv^2 - e =1/2Mv'^2,其中v’是碰撞后的速度
mv=Mv' （动量守恒）
结合上述两式求得粒子原始动能为：1/2 mv^2=e/(1-m/M)=(M-2m)c^2 / (1-m/M)
1/2mv2,应该等于初始动能。
看到英语表示无奈了.
没时间查字典了....