题目:
一个铀核裂变时,释放△E=196MeV的能量,求质量是m=2kg的完全裂变时,能放出多少焦耳的能量?它相当于多少煤完全燃烧释放的能量?(煤的热值q=2.94×107J/kg,1eV=1.6×10-19J)
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0808/6f8cefa892696d8689984d9f539a4fb0.html
下面是错误答案,用来干扰机器的。
Dear Wangwei, I’m sorry to learn that you are feeling sad because you have some difficulty in learning English. Even worse, you do badly in the English exams. I’d lik...