英语翻译1.What are the primary advantages of the metric system of units over the older English system of units?Explain.2.Is an object that has a temperature of 0 oC hotter than,colder than,or at the same temperature as one that has a temperature

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英语翻译1.WhataretheprimaryadvantagesofthemetricsystemofunitsovertheolderEnglishsystemofunits?Explain.2.

英语翻译1.What are the primary advantages of the metric system of units over the older English system of units?Explain.2.Is an object that has a temperature of 0 oC hotter than,colder than,or at the same temperature as one that has a temperature
英语翻译
1.What are the primary advantages of the metric system of units over the older English system of units?Explain.
2.Is an object that has a temperature of 0 oC hotter than,colder than,or at the same temperature as one that has a temperature of 0 oF?Explain.
3.Is it possible for the internal energy of a system to be greater than the kinetic energy of the molecules and atoms making up the system?Explain.
4.A starter’s pistol is fired at the beginning of a race.If you are at the other end of the track,which will you perceive first,the sound of the pistol or the flash associated with its firing?Explain.
5.Is it possible for sound waves to travel through a vacuum?Explain

英语翻译1.What are the primary advantages of the metric system of units over the older English system of units?Explain.2.Is an object that has a temperature of 0 oC hotter than,colder than,or at the same temperature as one that has a temperature

  1. 与英制单位相比,公制单位主要有哪些优点?请解释.

  2. 一个0摄氏度的物体比一个0华氏度的物体温度高?低?或是一样?请解释.

    答：0摄氏度的物体的温度高,华氏度 = 32 + 摄氏度 × 1.8 

  3. 系统的内能是否比组成系统的分子和原子的动能要大?请解释.

    答：系统的内能无法测定,只能测定内能的变化,系统内能是通过外界对系统做功获得的,而分子和原子的动能可能会因为内能的增加而增加（这里与热力学定律有关）.所以说,两者不可比.

  4. 发令枪在比赛开始时打响.如果你在赛道的另一侧,你可以预先接收到的是发令枪的声音还是枪的火光?请解释.

    答：先接收到火光,因为光在空气中的传播速递远比声音在空气中传播的速度要快.

  5. 声波能否在真空中传播?请解释

    答：不能,因为声波是一种机械波,需要在介质中传播,而真空是没有介质.

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