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作者 physheepy 在 PTT [ Physics ] 看板的留言(推文), 共16則

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[好奇] 如何求得麵包體積

[ Physics ]99 留言, 推噓總分: +37

作者: yoyo9466 - 發表於 2013/09/17 19:58(12年前)

96^F→physheepy:用保鮮膜包起來丟水裡不行嗎？09/21 03:26

[題目] 電磁學問題

[ Physics ]3 留言, 推噓總分: +1

作者: tamphord - 發表於 2008/11/20 17:12(17年前)

1^F推physheepy:這裡的安培定律是指磁場沿著封閉曲線積分跟電流成正比嗎11/20 21:10

2^F→physheepy:如果是的話請參閱maxwell eq第四條有時變電場的話還要11/20 21:11

3^F→physheepy:加上一個電場對時間導數的修正項11/20 21:12

[問題] 自由落體

[ Physics ]5 留言, 推噓總分: +3

作者: whoi - 發表於 2008/11/14 20:33(17年前)

3^F推physheepy:有受力就會感覺到但是是感覺的到自己有受力而不是感覺11/14 22:06

4^F→physheepy:到自己在移動11/14 22:06

[問題] 關於雷射筆照射黑板

[ Physics ]12 留言, 推噓總分: +1

作者: tsamarfi - 發表於 2008/11/11 18:50(17年前)

6^F推physheepy:2樓的意思應該是每種材質吸收率不一樣而且雷射筆的11/11 20:31

7^F→physheepy:intensity比較強又是單色光即使只有一點點反射也很明11/11 20:32

8^F→physheepy:顯(這是對比的問題) 白光照上藍色物體即使紅光有反射11/11 20:33

9^F→physheepy:也被隱藏在藍光之中單色光的話眼睛就不會被別的顏色欺11/11 20:34

10^F→physheepy:騙所以一點點紅光也察覺的到11/11 20:34

[問題] 凸透鏡

[ Physics ]4 留言, 推噓總分: +2

作者: solitary417 - 發表於 2008/11/11 18:11(17年前)

2^F→physheepy:你說的是正確的而且凹透鏡正好相反介質密度比鏡子密度11/11 20:38

3^F→physheepy:大的話凹透鏡反而會聚光11/11 20:39

自旋與Zeeman effect?

[ Physics ]5 留言, 推噓總分: +1

作者: SamLucien - 發表於 2008/11/11 15:04(17年前)

1^F→physheepy:弱磁場zeeman effect證明電子自旋1/2 因為分裂普線是11/11 20:36

2^F→physheepy:2J+1條出現偶數條譜線表示J是分數因此S必須為分數11/11 20:36

3^F→physheepy:第二個問題要問天...11/11 20:37

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