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中子n、质子p、氦核D的质量分别为Mn、Mp、Md,现用光子能量为E的r射线照射静止氦核使之分解,反应方程...

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中子n、质子p、氦核D的质量分别为Mn、Mp、Md,现用光子能量为E的r射线照射静止氦核使之分解,反应方程...
中子n、质子p、氦核D的质量分别为Mn、Mp、Md,现用光子能量为E的r射线照射静止氦核使之分解,反应方程为r+D→p+n,若分解后的中子、质子的动能可视为相等,则中子的动能是多少?
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2004广东高考中子n、质子p、氘核D的质量分别为Mn、Mp、MD,现用光子能量为E的r射线照射静止氘核使之分裂,反应的 中子质子和氘核的质量分别为m1,m2,m3,现用光子能量为E的r射线照射静止的氘核,使之分解为一个中子和一个质子,若分解 质子和中子的质量分别是m1和m2,当它们结合成氘核时,以r射线的形式放出能量E.已知普科朗常量为h,真空中的光速为c,则 已知氘核的质量mD=3.344 6×10-27 kg.如果用入射光子照射氘核使其分为质子和中子,质子质量mp=1.672 用粒子轰击原子可使其从基态跃迁到激发态,设原子基态和激态的能量差为△E,现分别用电子和质子轰击质量为M的静止原子,试问欲 如果用一个能量等于中子和质子结合成氘核的光子照射静止的氘核 氘核会分解吗 4.设质子、中子、氘核的质量分别为m1、m2和m3.那么,当一个质子和一个中子结合成一个氘核时,释放的能量是 [ ] 已知M(-2,0),N(2,0),P为动点,!MN!*!MP!+向量MN*向量NP=0求P轨迹方程 (!MN!,!MP! 题,图略.当电键K断开时,用光子能量为2.5eV的一束光照射阴极P,发现电流表读数为零.合上电键,调节滑线变阻器,发现当 氢原子能级的示意图如图所示,用光子能量为12.75ev的光照射一群处于基态的氢原子,可能观察到氢原子发射不同波长的光有( 用光子能量为13.06eV的光照射 一群处于基态的氢原子,可能观测到氢原子发射的不同波长的 光有 ▲ 种 夸克的组成?原子由中子质子电子组成 质子中子再划分为夸克 夸克再再划分,最后是不是可能只剩下能量?能量质量划等号