{"id":8387,"date":"2009-02-11T14:36:00","date_gmt":"2009-02-11T14:36:00","guid":{"rendered":"http:\/\/melotopia.net\/b\/?p=8387"},"modified":"2009-02-11T14:36:00","modified_gmt":"2009-02-11T14:36:00","slug":"%ea%b9%a1%ed%86%b5%ec%9d%98-%ea%b4%80%ec%84%b1%eb%aa%a8%eb%a9%98%ed%8a%b8","status":"publish","type":"post","link":"http:\/\/melotopia.net\/b\/?p=8387","title":{"rendered":"\uae61\ud1b5\uc758 \uad00\uc131\ubaa8\uba58\ud2b8"},"content":{"rendered":"<div class=\"desc\">\n        \uc19c\uc0ac\ud0d5 \ub9cc\ub4e4\uae30\uc5d0 \ud544\uc218\uc801\uc778 \uae61\ud1b5.<br \/>\n        <br \/>\n        \uacfc\uc5f0, \uadf8 \uad00\uc131\ubaa8\uba58\ud2b8\ub294 \uc5bc\ub9c8\ub098 \ub420 \uac83\uc778\uac00?<\/p>\n<p>        \uc77c\ub2e8, \uae61\ud1b5\uc744 \uc6d0\uae30\ub465 \uaecd\uc9c8(Cylinderical Shell)\uacfc \uc6d0\ud310 2\uac1c\ub85c \uadfc\uc0ac\ud558\uc790.<br \/>\n        <\/p>\n<p><a href=\"http:\/\/www.hanbitbook.co.kr\/web\/sample\/1178\/physics_game_chap01.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">physics_game_chap01.pdf\uc5d0 \uc561\uc138\uc2a4\ud558\ub824\uba74 \ud074\ub9ad\ud558\uc138\uc694.<\/a><\/p>\n<p>\n        \uc774\uac78 \ucc38\uace0\ud574 \ubcf4\uba74, \uc6d0\ud310\uc758 \uad00\uc131\ubaa8\uba58\ud2b8\ub294 $mr^2 \/2$ \uc774\ub2e4. (\uacc4\uc0b0\ud560\uc904 \ubab0\ub77c\uc11c \uc778\uc6a9\ud55c \uac83\uc740 \uc544\ub2c8\ub2e4 -_-; \uc801\ubd84\ud558\uae30 \uadc0\ucc2e\uc544\uc11c&#8230;\uc8fc\ubcc0\uc5d0 \ucc45\ub3c4 \uc5c6\uace0&#8230;) \uae61\ud1b5\uc5d0\ub294 \uc6d0\ud310\uc774 2\uac1c \uc788\uc73c\ub2c8\uae4c $mr^2 $\uc774\ub77c\uace0 \ud558\uba74 \ub418\uaca0\ub2e4.<br \/>\n        <br \/>\n        \uc6d0\uae30\ub465 \uaecd\uc9c8\uc758 \uad00\uc131\ubaa8\uba58\ud2b8\ub294 $mr^2$\uc774\ub2e4. \ubb3c\ub860 \uc5ec\uae30\uc11c \uc6d0\uae30\ub465 \uaecd\uc9c8\uc758 m\uc740 \uaecd\uc9c8 \ubd80\ubd84\uc758 \uc9c8\ub7c9\ub9cc\uc744 \uc758\ubbf8\ud55c\ub2e4. \uc55e\uc5d0 \ub098\uc628 \uc6d0\ud310\uc758 m\uc740 \uc6d0\ud310 \ubd80\ubd84\uc758 \uc9c8\ub7c9\ub9cc\uc744 \uc774\uc57c\uae30\ud55c\ub2e4.<\/p>\n<p>        \uc774\uc81c, \uc8fc \uc7ac\ub8cc\uc778 \ub9e5\uc8fc\uce94\uc774\ub098 \uc6f0\uce58\uc2a4 \uae61\ud1b5\uc758 \uc9c8\ub7c9\uacfc \ubc18\uc9c0\ub984\uc744 \uc54c\uc544\ubcf4\uc790.<br \/>\n        <br \/>\n        \uc54c\ub824\uc9c4 \uc815\ubcf4\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<br \/>\n        <br \/>\n        \ubc00\ub3c4 :<br \/>\n2.70 g\/cm<br \/>\n        <sup><br \/>\n         -3<br \/>\n        <\/sup><br \/>\n        (http:\/\/ko.wikipedia.org\/wiki\/%EC%95%8C%EB%A3%A8%EB%AF%B8%EB%8A%84)<br \/>\n        <br \/>\n        \uce94\uc758 \ub450\uaed8 : 0.13mm (http:\/\/www.lotteal.co.kr\/4_customer\/jo.asp?class=1&#038;p=1&#038;cd=4)<\/p>\n<p>        \uadf8\ub7fc \ubb38\uc81c\ub294 \uae61\ud1b5\uc758 \ud06c\uae30\uc778\ub370.<br \/>\n        <br \/>\n        \uc2e4\uce21 \uc5c6\uc774 \uc778\ud130\ub137\uc73c\ub85c\ub9cc \uac80\uc0c9\ud558\ub824\ub2c8 \ud798\ub4e4\ub2e4. -_-; \ub098\uc911\uc5d0 \uc790\ub85c \uc7ac\ub4e0\uac00 \ud574\uc57c\uc9c0&#8230;<br \/>\n        <br \/>\n        http:\/\/en.wikipedia.org\/wiki\/Beverage_can<br \/>\n        <br \/>\n        \uc774\uac78 \ucc38\uace0\ud558\uba74 \uc9c0\ub984\uc774 65mm\ub2e4. \uc989, \ubc18\uc9c0\ub984\uc740 32.5<\/p>\n<p>        \ub192\uc774\ub294&#8230;\uacc4\uc0b0\ud574\uc57c\uaca0\ub2e4. \ubd80\ud53c\uac00 380ml\uc9dc\ub9ac\uba74, \uc5ec\ubc31 \uc0dd\uac01\ud574\uc11c 400ml\ub77c\uace0 \ub300\ucda9 \uc5b4\ub9bc\uc7a1\uace0, 1ml\ub294 1000\uc138\uc81c\uacf1\ubc00\ub9ac\ubbf8\ud130\ub2e4. \uadf8\ub7fc, 400ml\ub294 400000\uc138\uc81c\uacf1 \ubc00\ub9ac\ubbf8\ud130\ub2e4. \ubc11\ub113\uc774\ub294 32.5*32.5*3.14 = 3317\uc774\ub2e4. \uadf8\ub7fc, 4000000\uc744 3317\ub85c \ub098\ub204\uba74 \ub300\ucda9 120mm\uac00 \ub098\uc628\ub2e4. 12\uc13c\uce58\ubbf8\ud130\ub77c\ub294 \uac70\ub2e4.<\/p>\n<p>        \uc774\uc81c \ub9e5\uc8fc\uce94\uc758 \uc6d0\ud310 \ubd80\ubd84\uc758 \uc9c8\ub7c9\uc744 \uacc4\uc0b0\ud574 \ubcf4\uc790. \ubc11\ub113\uc774\ub294 3317\uc774\uace0, \ub450\uaed8\ub294 0.13\uc774\ub2c8\uae4c 413.21\uc138\uc81c\uacf1\ubc00\ub9ac\ubbf8\ud130\ub2e4. \uc989, 0.41321\uc138\uc81c\uacf1 \uc13c\uce58\ubbf8\ud130\ub2e4. \uc54c\ub8e8\ubbf8\ub284\uc758 \ubc00\ub3c4\ub294 1\uc138\uc81c\uacf1\uc13c\uce58\ubbf8\ud130\ub2f9 2.7\uadf8\ub7a8\uc774\ub2c8\uae4c,<br \/>\n        <br \/>\n        0.1115667\uadf8\ub7a8\uc774 \ub41c\ub2e4. \ud0ac\ub85c\uadf8\ub7a8\uc73c\ub85c \ubc14\uafb8\uba74 0.001115667\ud0ac\ub85c\uadf8\ub7a8\uc774\ub2e4.<\/p>\n<p>        \uae61\ud1b5\uc758 \uae30\ub465 \ubd80\ubd84\uc758 \uc9c8\ub7c9\uc744 \uacc4\uc0b0\ud558\uc790. 65*3.14*0.13= 3183.96\uc138\uc81c\uacf1\ubc00\ub9ac\ubbf8\ud130. \uadf8\ub7fc, \ub300\ub7b5 \uc6d0\ud310\uc758 3\/4\uc815\ub3c4 \ub41c\ub2e4. \ub300\ucda9 \uc5b4\ub9bc\uacc4\uc0b0\ud558\uba74 0.0008 \ud0ac\ub85c\uadf8\ub7a8. (\uc774\ub798\ub3c4 \ub418\ub294\uc9c0 \uad81\uae08\ud558\uba74 \uc9c1\uc811 \uc815\ud655\ud788 \uacc4\uc0b0\ud574\ub3c4 \uc88b\ub2e4.)<\/p>\n<p>        \uc774\uc81c, \uad00\uc131\ubaa8\uba58\ud2b8\ub97c \uacc4\uc0b0\ud558\uc790. \ubc18\uc9c0\ub984\uc758 \uc81c\uacf1\uc740 0.00105625 \uc81c\uacf1\ubbf8\ud130\ub2e4. \uc544, \uadf8\ub7f0\ub370 \uc774 \uacbd\uc6b0 \ubc18\uc9c0\ub984\uc740 \ub3d9\uc77c\ud558\uace0 \uc9c8\ub7c9\uc5d0\ub9cc \ube44\ub840\ud558\ubbc0\ub85c, \uacb0\uacfc\uc801\uc73c\ub85c \uc804\uccb4\uc801\uc778 \uad00\uc131\ubaa8\uba58\ud2b8\ub294 \uc9c8\ub7c9\uc5d0 \ubc18\uc9c0\ub984\uc758 \uc81c\uacf1\uc744 \uacf1\ud558\uba74 \ub41c\ub2e4. \ubb50\uc5ec&#8230;<\/p>\n<p>        \ub300\ucda9, \uc9c8\ub7c9\uc774 0.002\ud0ac\ub85c\uadf8\ub7a8\uc774\uc5c8\uc73c\ub2c8\uae4c, \ub458\uc744 \uacf1\ud558\uba74 0.000021\ud0ac\ub85c\uadf8\ub7a8\uc81c\uacf1\ubbf8\ud130\uac00 \ub41c\ub2e4.<br \/>\n        <\/p>\n<div style=\"width:100%;margin-top:30px;clear:both;height:30px\">\n<div style=\"width:31px;float:left;\">\n<a href=\"\/toolbar\/popup\/abuseReport\/?entryId=1192\" onclick=\"window.open(this.href, 'tistoryThisBlogPopup', 'width=550, height=510, toolbar=no, menubar=no, status=no, scrollbars=no'); return false;\"><br \/>\n<img data-recalc-dims=\"1\" decoding=\"async\" alt=\"\uc2e0\uace0\" src=\"https:\/\/i0.wp.com\/t1.daumcdn.net\/tistory_admin\/static\/ico\/ico_spam_report.png\" style=\"border:0\"\/><br \/>\n<\/a>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\uc19c\uc0ac\ud0d5 \ub9cc\ub4e4\uae30\uc5d0 \ud544\uc218\uc801\uc778 \uae61\ud1b5. \uacfc\uc5f0, \uadf8 \uad00\uc131\ubaa8\uba58\ud2b8\ub294 \uc5bc\ub9c8\ub098 \ub420 \uac83\uc778\uac00? \uc77c\ub2e8, \uae61\ud1b5\uc744 \uc6d0\uae30\ub465 \uaecd\uc9c8(Cylinderical Shell)\uacfc \uc6d0\ud310 2\uac1c\ub85c \uadfc\uc0ac\ud558\uc790. physics_game_chap01.pdf\uc5d0 \uc561\uc138\uc2a4\ud558\ub824\uba74 \ud074\ub9ad\ud558\uc138\uc694. \uc774\uac78 \ucc38\uace0\ud574 \ubcf4\uba74, \uc6d0\ud310\uc758 \uad00\uc131\ubaa8\uba58\ud2b8\ub294 $mr^2 \/2$ \uc774\ub2e4. (\uacc4\uc0b0\ud560\uc904 \ubab0\ub77c\uc11c \uc778\uc6a9\ud55c \uac83\uc740 \uc544\ub2c8\ub2e4 -_-; \uc801\ubd84\ud558\uae30 \uadc0\ucc2e\uc544\uc11c&#8230;\uc8fc\ubcc0\uc5d0 \ucc45\ub3c4 \uc5c6\uace0&#8230;) \uae61\ud1b5\uc5d0\ub294 \uc6d0\ud310\uc774 2\uac1c \uc788\uc73c\ub2c8\uae4c $mr^2 $\uc774\ub77c\uace0 \ud558\uba74 \ub418\uaca0\ub2e4. \uc6d0\uae30\ub465 \uaecd\uc9c8\uc758 \uad00\uc131\ubaa8\uba58\ud2b8\ub294 $mr^2$\uc774\ub2e4. \ubb3c\ub860 \uc5ec\uae30\uc11c \uc6d0\uae30\ub465 \uaecd\uc9c8\uc758 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-8387","post","type-post","status-publish","format-standard","hentry","category-academic"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8o6gA-2bh","jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/8387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8387"}],"version-history":[{"count":0,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=\/wp\/v2\/posts\/8387\/revisions"}],"wp:attachment":[{"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8387"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/melotopia.net\/b\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}