{"id":790,"date":"2011-03-05T14:11:04","date_gmt":"2011-03-05T06:11:04","guid":{"rendered":"http:\/\/tutor.cyant.net\/?p=790"},"modified":"2011-04-03T22:09:19","modified_gmt":"2011-04-03T14:09:19","slug":"330%e7%89%a9%e7%90%86%e5%95%8f%e9%a1%8c%e8%a7%a3%e9%87%8b","status":"publish","type":"post","link":"https:\/\/tutor.cyant.net\/?p=790","title":{"rendered":"3\/30\u7269\u7406\u554f\u984c\u89e3\u91cb"},"content":{"rendered":"<p>\u4e0b\u9762\u662f\u6709\u95dc\u65bc\u4e00\u4e9b\u9ad8\u4e2d\u7269\u7406\u554f\u984c\u7684\u89e3\u91cb\uff0c\u5982\u679c\u4ecd\u6709\u4e0d\u6e05\u8655\u7684\u53ef\u4ee5\u518d\u63d0\u51fa\u8a0e\u8ad6<\/p>\n<p><strong>\u95dc\u65bc\u6c23\u9ad4\u90a3\u4e00\u984c<\/strong><\/p>\n<p>\u7b54\u6848\u70ba\u4ec0\u9ebc\u662f5PV\u7684\u539f\u56e0\u662f\uff0c\u7b49\u58d3\u81a8\u8139\u4e2d\uff0c\u80fd\u91cf\u8b8a\u5316\u70ba5\/2P\u0394V\uff0c\u5176\u4e2d\u0394V\u662f\u70ba2V\uff0c\u56e0\u70ba\u9ad4\u7a4d\u81a8\u8139\u70ba\u4e09\u500d\u591a\u4e862V<\/p>\n<p><strong>\u95dc\u65bc\u934a\u5b50\u6389\u4e0b\u7684\u6700\u5927\u91cd\u529b<\/strong><\/p>\n<p>\u9019\u9700\u8981\u7aef\u770b\u934a\u5b50\u6389\u4e0b\u6642\u7684\u901f\u5ea6\u800c\u5b9a\uff0c\u7531\u65bc\u984c\u76ee\u6c92\u6709\u5b9a\u7fa9\u5f88\u6e05\u695a<\/p>\n<p>\u4e00\u822c\u4f86\u8aaa\u8003\u616e\u300c\u79e4\u5b50\u4e0d\u6703\u56e0\u6b64\u4e0b\u964d\u4e00\u4e9b\u9ad8\u5ea6\u300d\u4ee5\u53ca\u300c\u934a\u5b50\u7531\u975c\u6b62\u958b\u59cb\u6389\u843d\u300d\u4e14\u300c\u934a\u5b50\u5e95\u90e8\u958b\u59cb\u6642\u525b\u597d\u63a5\u89f8\u5e95\u76e4\u300d\u7684\u60c5\u6cc1\u4e0b<\/p>\n<p>\u5047\u8a2d\u934a\u9577L\uff0c\u934a\u91cdM\uff0c\u5730\u8868\u91cd\u529b\u52a0\u901f\u5ea6g<\/p>\n<p>\u90a3\u9ebc\u79e4\u5b50\u6700\u5927\u986f\u793a\u7684\u91cd\u91cf\uff0c\u5373\u662f\u6700\u5f8c\u4e00\u5c0f\u6bb5\u843d\u4e0b\u524d\u7684\u4e00\u77ac\u9593<\/p>\n<p>\u5373\u662f<\/p>\n<p>Mg + (\u0394P\/\u0394t) = Mg + [\u0394(mv)\/\u0394t] = Mg + [(\u0394m)v\/\u0394t] = Mg + [(\u0394m)\/\u0394t]v =Mg + [(M\/L)(\u221a2gL)]v = Mg + [(M\/L)(\u221a2gL)](\u221a2gL)<\/p>\n<p>= Mg + 2Mg = 3Mg<\/p>\n<p>\u6709\u9ebc\u554f\u984c\u53ef\u4ee5\u7559\u8a00\u63d0\u51fa\u8a0e\u8ad6\u56c9 : )<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0b\u9762\u662f\u6709\u95dc\u65bc\u4e00\u4e9b\u9ad8\u4e2d\u7269\u7406\u554f\u984c\u7684\u89e3\u91cb\uff0c\u5982\u679c\u4ecd\u6709\u4e0d\u6e05\u8655\u7684\u53ef\u4ee5\u518d\u63d0\u51fa\u8a0e\u8ad6 \u95dc\u65bc\u6c23\u9ad4\u90a3\u4e00\u984c \u7b54\u6848\u70ba\u4ec0\u9ebc\u662f5PV\u7684\u539f\u56e0\u662f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40,3],"tags":[97,19,17,13,14],"class_list":["post-790","post","type-post","status-publish","format-standard","hentry","category-ref","category-3","tag-97","tag-19","tag-17","tag-13","tag-14"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=\/wp\/v2\/posts\/790","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=790"}],"version-history":[{"count":6,"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=\/wp\/v2\/posts\/790\/revisions"}],"predecessor-version":[{"id":800,"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=\/wp\/v2\/posts\/790\/revisions\/800"}],"wp:attachment":[{"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tutor.cyant.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}