[問題] 質量守恆一題
直接把問題拍下來最簡單清楚
http://0rz.tw/rkx5Z
答案是C
我寫B。右盤總質量確實不會改變吧,為什麼不對呢?
感謝解答的各位。
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◆ From: 58.115.172.185
※ 編輯: Cathaysoul 來自: 58.115.172.185 (03/20 15:36)
※ 編輯: Cathaysoul 來自: 58.115.172.185 (03/20 15:37)
推
03/20 15:39, , 1F
03/20 15:39, 1F
→
03/20 15:48, , 2F
03/20 15:48, 2F
推
03/20 15:49, , 3F
03/20 15:49, 3F
推
03/20 15:54, , 4F
03/20 15:54, 4F
推
03/20 15:58, , 5F
03/20 15:58, 5F
推
03/20 15:58, , 6F
03/20 15:58, 6F
推
03/20 16:10, , 7F
03/20 16:10, 7F
推
03/20 16:18, , 8F
03/20 16:18, 8F
→
03/20 16:26, , 9F
03/20 16:26, 9F
→
03/20 16:26, , 10F
03/20 16:26, 10F
推
03/20 16:31, , 11F
03/20 16:31, 11F
推
03/20 17:24, , 12F
03/20 17:24, 12F
推
03/20 17:35, , 13F
03/20 17:35, 13F
推
03/20 18:32, , 14F
03/20 18:32, 14F
推
03/20 18:47, , 15F
03/20 18:47, 15F
推
03/20 18:54, , 16F
03/20 18:54, 16F
推
03/20 19:04, , 17F
03/20 19:04, 17F
推
03/20 19:35, , 18F
03/20 19:35, 18F
推
03/20 21:46, , 19F
03/20 21:46, 19F
→
03/20 22:22, , 20F
03/20 22:22, 20F
→
03/20 22:23, , 21F
03/20 22:23, 21F
→
03/20 22:24, , 22F
03/20 22:24, 22F
推
03/21 00:19, , 23F
03/21 00:19, 23F
→
03/21 00:23, , 24F
03/21 00:23, 24F
推
03/21 01:22, , 25F
03/21 01:22, 25F
推
03/21 01:58, , 26F
03/21 01:58, 26F
→
04/18 17:36, , 27F
04/18 17:36, 27F
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