“2018年USAAAO短问题第8道”的版本间的差异
来自astro-init
Jingsong Guo（讨论 | 贡献） （创建页面，内容为“==英文题目== 8. [5 pt] In stars like the Sun, helium nuclei are formed by fusing hydrogen nuclei together in a process known as the proton-proton chain. One ste…”） |
Jingsong Guo（讨论 | 贡献） |
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known as the proton-proton chain. One step of the proton-proton chain consists of a deuterium nucleus | known as the proton-proton chain. One step of the proton-proton chain consists of a deuterium nucleus | ||
($$m_d = 2.01410 u$$) fusing together with a hydrogen nucleus ($$m_H = 1.00783 u$$) to form a helium-3 nucleus | ($$m_d = 2.01410 u$$) fusing together with a hydrogen nucleus ($$m_H = 1.00783 u$$) to form a helium-3 nucleus | ||
| − | ($$m_{He} = 3.01603 u), where $$u = 1.6605 × 10^{−27}$$ kg. How much energy is released during this fusion reaction? | + | ($$m_{He} = 3.01603 u$$), where $$u = 1.6605 × 10^{−27}$$ kg. How much energy is released during this fusion reaction? |
2020年3月9日 (一) 18:21的最新版本
英文题目
8. [5 pt] In stars like the Sun, helium nuclei are formed by fusing hydrogen nuclei together in a process known as the proton-proton chain. One step of the proton-proton chain consists of a deuterium nucleus ($$m_d = 2.01410 u$$) fusing together with a hydrogen nucleus ($$m_H = 1.00783 u$$) to form a helium-3 nucleus ($$m_{He} = 3.01603 u$$), where $$u = 1.6605 × 10^{−27}$$ kg. How much energy is released during this fusion reaction?
