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2027高考物理一轮复习:必修二之第八章 机械能守恒定律(功能关系)····新高考核心重点章节,可以自学哦!

  • 2026-10-06 03:16:15
2027高考物理一轮复习:必修二之第八章 机械能守恒定律(功能关系)····新高考核心重点章节,可以自学哦!

开篇语：做功必然改变动能，势能伴随弹力重力。必修二功与机械能板块，依托功、功率、动能定理、机械能守恒搭建能量解题框架。本次内容我们将一同归纳梳理，涵盖功的判断、两种功率、机车启动两类模型、重力/弹簧弹力做功与势能、动能定理、机械能守恒条件与实验、板块摩擦生热、链条柔软体机械能题型，所有知识点均配套完整手写推导过程。

由于公众号后台编辑功能有限，特殊符号输入不便，因此全部内容均以图片形式呈现，还望大家谅解！如果有朋友需要原始Word文档，可以直接在后台私信联系我获取。

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九年级道法,新课和复习怎么兼顾?我用“半小时串线法”,两边都没耽误

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000746s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.002083s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000478s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000391s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000595s ]
  6. SELECT * FROM `set` [ RunTime:0.000301s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000743s ]
  8. SELECT * FROM `article` WHERE `id` = 520065 LIMIT 1 [ RunTime:0.000374s ]
  9. UPDATE `article` SET `lasttime` = 1791236693 WHERE `id` = 520065 [ RunTime:0.001702s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000334s ]
  11. SELECT * FROM `article` WHERE `id` < 520065 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000552s ]
  12. SELECT * FROM `article` WHERE `id` > 520065 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000357s ]
  13. SELECT * FROM `article` WHERE `id` < 520065 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000693s ]
  14. SELECT * FROM `article` WHERE `id` < 520065 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000750s ]
  15. SELECT * FROM `article` WHERE `id` < 520065 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000552s ]
0.087078s