{"categories":[],"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frin1024.hatenadiary.org%2Fentry%2F20120217%2F1329470121\" title=\"\u30d8\u30ea\u30a6\u30e0\u306e\u6d6e\u529b\u8a08\u7b97\u30b5\u30f3\u30d7\u30eb - uncertain world\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u30d8\u30ea\u30a6\u30e0\u306e\u6d6e\u529b\u8a08\u7b97\u30b5\u30f3\u30d7\u30eb","published":"2012-02-17 18:15:21","description":"\u25c6\u76f4\u5f841.5m\u306e\u5834\u5408 \u30fb\u751f\u5730(0.2[kg/m^2])\u306e\u91cd\u91cf \u8868\u9762\u7a4d[m^2] x \u751f\u5730\u306e\u91cd\u91cf[kg/m^2] = \u751f\u5730\u306e\u7dcf\u91cd\u91cf[kg] (4 * 3.14 * 0.75^2) * 0.2 = 1.413[kg] \u30fb\u30d0\u30eb\u30fc\u30f3\u306e\u4f53\u7a4d\u8a08\u7b97 4/3 * 3.14 * 0.75^3 = 1.765[m^3] \u30fb\u30d0\u30eb\u30fc\u30f3\u306e\u4f53\u7a4d\u304b\u3089\u30d8\u30ea\u30a6\u30e0\u306e\u6d6e\u529b\u3092\u9006\u7b97 1.765[m^3] * 1.06[kg/m^3] = 1.872[kg] \u30fb\u7a4d\u8f09\u53ef\u80fd\u306a\u91cd\u91cf \u7a4d\u8f09\u53ef\u80fd\u306a\u91cd\u91cf = \u6d6e\u529b - \u751f\u5730\u306e\u4f53\u7a4d = 1.872[kg] - 1.413[kg] = 0.459[kg] = 459[g] \u3068\u306a\u308a\u307e\u3059\u3002 \u25c6\u30bd\u30fc\u30b9\u6dfb\u4ed8 c\u2026","author_name":"rin1024","blog_title":"uncertain world","author_url":"https://blog.hatena.ne.jp/rin1024/","type":"rich","provider_name":"Hatena Blog","blog_url":"https://rin1024.hatenadiary.org/","url":"https://rin1024.hatenadiary.org/entry/20120217/1329470121","provider_url":"https://hatena.blog","height":"190","version":"1.0","width":"100%"}