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物理のかぎしっぽ数式掲示板避難所
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氷の厚さ?
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kuhcrow
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Jun 30, 2014, 8:28:47 AM
6/30/14
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kuhcrow、物理の小ネタ担当?です。
こんばんは。
わたし当時の修士入試の過去問なんですが、
お暇な時にやってみてください。
なにぶん40年近く前なので、勘違いなどあればご容赦。
気温が下がって、池の水が凍り始めた。
凍り初めてからの時間を t とすると、
氷の厚さは t の平方根に比例することを示せ。
クロメル
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Jun 30, 2014, 8:48:27 AM
6/30/14
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kuhcrowさん、
おおざっぱにですが、解けました。
ここに書いちゃっていいのでしょうか?
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kuhcrow
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Jun 30, 2014, 8:50:34 AM
6/30/14
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> ここに書いちゃっていいのでしょうか?
速いっすね。
おまかせします!
kuhcrow
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Jun 30, 2014, 8:57:24 AM
6/30/14
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kuhcrow
です。
言い忘れました。
わたしもわりにすんなり解けた気になったんですが、
過去問なのでいまだに正解かどうか知らないんです。
一週間くらい後に、皆さん一斉に回答しみるというのはいかがでしょうか?
「後出しなし」で?
クロメル
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Jun 30, 2014, 9:01:19 AM
6/30/14
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kuhcrowさん、
了解です。確かにその方が皆さん楽しめますね。
そうしましょう!来週の月曜(7/7)夜に報告でいいですか?
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kuhcrow
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Jun 30, 2014, 9:15:21 AM
6/30/14
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> 来週の月曜(7/7)夜に報告でいいですか?
では、その線で。
もっともこの手の問題に、正解があるのか不明ですが。。。
今日はもう寝ます。
おやすみなさい。
クロメル
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Jun 30, 2014, 9:18:19 AM
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はーい、おやすみなさい^^。
クロメル
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Jul 7, 2014, 8:37:15 AM
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約束の時間ですね。kuhcrowさん、ご確認をお願いします^^。
mail.pdf
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kuhcrow
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Jul 7, 2014, 8:39:16 AM
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とりあえず、kuhcrow の回答です。
https://docs.google.com/document/d/1pVxf3fqqXaMkKunA_XwJJIfNgzqTzLep5mJ-4QSCg1Y/pub
クロメル
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Jul 7, 2014, 8:44:49 AM
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おお、一致しましたね!やったーぃ。
kuhcrow
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Jul 7, 2014, 8:56:42 AM
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おお、投稿時間もほとんど一緒でした。
わたしがPOSTボタンを押そうとして、ふと見ると google goupsnの投稿通知がありました。
とりあえず、回答は同じだった、ということで!
クロメル
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Jul 7, 2014, 8:59:22 AM
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そうですね。投稿したのを確認しようとしたら、
なんとkuhcrowさんの投稿がありました。
すごい偶然だ(笑)。
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