2道物理题,explain why the relative atomic mass of the atom is less than the sum of the nucleons解释为什么原子相对质量小于核子总数.2.under particular conditions not all the heat energy is shown by a rise in temperature,explain in

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2道物理题,explain why the relative atomic mass of the atom is less than the sum of the nucleons解释为什么原子相对质量小于核子总数.2.under particular conditions not all the heat energy is shown by a rise in temperature,explain in
2道物理题,
explain why the relative atomic mass of the atom is less than the sum of the nucleons
解释为什么原子相对质量小于核子总数.
2.under particular conditions not all the heat energy is shown by a rise in temperature,explain in as much detail why this is.
在特定的条件下不是所有的热能量都是显示在上升的气温,尽可能的详细解释为什么.

2道物理题,explain why the relative atomic mass of the atom is less than the sum of the nucleons解释为什么原子相对质量小于核子总数.2.under particular conditions not all the heat energy is shown by a rise in temperature,explain in
1.质子的质量为1.007825,中子的质量为1.008665.相对原子质量是把该原子的质量和H原子质量作比的值.所以原子的相对质量=质子质量+中子质量（电子质量忽略）=（质子数+中子数）*1(偏小）= 原子的相对质量.所以有核子总数>相对原子质量.
2.因为能量的转换只有在隔热密闭的条件下才内能守恒.不满足条件时候热能还可以转换成动能,比如蒸汽机.还可以转换成电能,比如火力发电.还可以转换成势能等.

2道物理题,explain why the relative atomic mass of the atom is less than the sum of the nucleons解释为什么原子相对质量小于核子总数.2.under particular conditions not all the heat energy is shown by a rise in temperature,explain in 口语考试 2-3分钟 What is your favorite holiday?Describe and explain why you like it. 宏观经济学问题（英语）1,Explain why the aggregate-demand curve is downward sloping?2,Use the sticky wage theory to explain why the short-run aggregate-supply curve slopes upward.3,Use the misperceptions theory to explain why the short-run 英语翻译I really wish I could explain it,baby (why) It's just the world is kinda crazy,baby (why) Ain't no pretty way to paint it,baby (why) Don't cry,dry your eyes September 11th,I woke up about 7 am west coast time,french toast And my turkey ba what do you think of smoking explain why急 Can anyone explain why it is there?的中文翻译 Suzy will explain why she recommends this book. c___the host to explain why he will be late smile is more easier than explain why you are so He continued_____(explain) the reason why he was late why you treat me like th? why is th letterBlike fire 求一篇英语历史作文,要求在底下Essay Prompt:At the end of the 19th century,the United States began to change the course of its foreign policy.Explain why the U.S.strengthened its presence in the Americas and beyond and how these actions r 2道物理题求助啊 Define economies of scale and explain why they might arise.Define diseconomies of scale and explain why they might arise.求中文答案. 二道离散数学题 a) Provide an upper bound for the number of paths from 129th St and 140th Ave to 134th St and 144th Ave in Surrey.Why is this only an upper bound?b) Look up International Morse Code (IMC) and then provide an upper bound as to th 英文日期缩写这样对?1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th ； 11th 12th 13th 14th 15th 16th 17th1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th ； 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th ； 21st 22nd 23rd 24th 25th 26th 27th 28th 29t why is Friday the 13th unlucky要查的...