信長之北野望
2021-7-3 15:34:12
關事
其實可以睇下Newton's law of gravitation, 假設而家講地球同太陽，咁m1同m2就係地球同太陽嘅重量，對地球同太陽嚟講佢地係互相吸引，大家食嘅重力都係咁多。但係點解係地球圍住太陽轉，呢個就關個質心事，簡單嚟講就係因為太陽重太多，地球拉唔郁佢。
手一黏便緊(UTC+9
2021-7-3 16:03:41
A value assigned to a system in thermodynamic equilibrium, such that when two systems, each in thermodynamic equilibrium, are put in thermal contact, heat flows from the higher temperature system to the lower temperature system (ie when the two systems are later no longer in thermal contact and each reach thermodynamic equilibrium again, the lower temperature system will have a higher temperature than before, and the higher temperature system will have a lower temperature than before)
佢陳述左system under thermodynamics equilibrium 上存在一個well-order 非常重要
電競工程師
2021-7-3 21:02:04
我覺得heat flow from the higher temperature system to the lower temperature system可以係second law講
Zeroth law 只講: If two systems, A and B, are separately in equilibrium with a third system C, then they are also in equilibrium with one another.
由le句statement得出可以定義"temperature"
個力冇大到可以改變左行星個軌跡
所以只會係ellipse orbit