作者查詢 / pphhxx
作者 pphhxx 在 PTT [ Physics ] 看板的留言(推文), 共182則
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10F推: 物理其實沒有推導PV=nRT,因為那是經驗公式得出的結果02/20 12:42
21F推: 樓上貼的好像都是氣體動力論,這不是推導PV=nRT吧?02/21 11:20
22F→: 而是把氣體動力論得到的PV=Nmv^2/3跟實驗得到的PV=nRT結合02/21 11:21
23F→: 不太記得是不是真的有理論去推導PV=nRT,脫離熱力學太久了02/21 11:21
6F推: 推樓上,一般槍枝就會先中彈才聽到聲音了10/23 12:04
8F推: 原來如此,漏看了無窮長QQ04/01 18:46
5F推: 不用隔絕水啊,會變化的只有壓力,浮力不變04/01 12:30
6F→: https://imgur.com/S0PaSTz04/01 12:50
15F推: 這考卷的排版也太糟糕了04/01 08:30
5F推: 一樓XDDD03/05 15:23
1F推: 做功=轉移能量,是一個動態行為11/02 09:38
2F→: 人對物體做正功(能量從人轉移到物體身上)11/02 09:39
3F→: 同時重力對物體做負功(能量從物體轉移到??)11/02 09:40
4F→: 對物體來說,能量一出一進,所以物體沒有得到動能11/02 09:40
5F→: 但是能量轉移到哪裡了呢? 上面的??就是儲存起來的位能11/02 09:41
30F→: 不一定要從N啊,也可以從下滑力去處理12/01 13:02
31F→: 只是你要先說清楚你是用慣性坐標系還是加速坐標系12/01 13:03
11F→: 沒有特別講就是表示一般情況吧,就是粗糙面的狀況09/06 22:46
12F→: 不需要特別去提,就像題目也沒講是不是在地球上實驗09/06 22:47
13F→: 你也不會沒事去考慮在無重力狀態的情況09/06 22:47
1F推: 11.動生電動勢 14.為什麼你會覺得是AD長度? LB已經垂直了04/19 18:08
11F推: 有點像芝諾悖論?09/28 12:19