{"blog_title":"\u307b\u3068\u307e\u308b\u30d6\u30ed\u30b0","published":"2015-11-27 06:22:37","author_url":"https://blog.hatena.ne.jp/hotomaru/","description":"\u843d\u4e0b\u3057\u305f\u9695\u77f3\u306e\u5927\u304d\u3055\u304c\u5206\u304b\u3089\u306a\u3044\u304c\u3001\u78ba\u304b\u76f4\u5f841\u30ad\u30ed\u7a0b\u5ea6\u306e\u9695\u77f3\u3067\u3082 \u4eba\u985e\u6ec5\u4ea1\u30ec\u30d9\u30eb\u3060\u3063\u305f\u6c17\u304c\u3059\u308b\u3002 \u3056\u3063\u3068\u8abf\u3079\u305f\u3068\u3053\u308d\u3001\u9695\u77f3\u306e\u5730\u7403\u3078\u306e\u885d\u7a81\u901f\u5ea6\u306f20km/s\u304f\u3089\u3044\u3089\u3057\u3044\u3002 20,000[m/s]\u3068\u3057\u3088\u3046\u3002 \u4eca\u56de\u306e\u9695\u77f3\u304c\u76f4\u5f84100m\u306e\u7403\u5f62\u3068\u3059\u308b\u3068\u3001 (\u4f53\u7a4d\u306e\u516c\u5f0f\u306f\u5fd8\u308c\u305fw) V=4/3*\u03c0r3=4/3*\u03c0*503=523,598[m3]\u304f\u3089\u3044 \u9695\u77f3\u306e\u69cb\u6210\u7269\u8cea\u306e\u6bd4\u91cd\u306f\u6c34\u3088\u308a\u91cd\u3044\u3068\u601d\u3046\u304c\u3001\u3068\u308a\u3042\u3048\u305a1m3=1,000kg\u3068\u3057\u3066 523,598,000[kg]\u304b\u306a\u3068\u3002 \u7aef\u6570\u3092\u5207\u308a\u6368\u3066\u3066 500,000,000[kg]\u3068\u3057\u3066 \u904b\u52d5\u30a8\u30cd\u30eb\u30ae\u30fc\u306f 1/2*m*v2=1/2 * 500,000,000 * 20\u2026","provider_url":"https://hatena.blog","author_name":"hotomaru","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/h/hotomaru/20151122/20151122185808.jpg","width":"100%","version":"1.0","type":"rich","url":"https://hotomaru.hateblo.jp/entry/20151127/1448572957","blog_url":"https://hotomaru.hateblo.jp/","title":"#7 \u81f3\u9ad8\u306e\u5f1f\u5b50","provider_name":"Hatena Blog","categories":["\u30ef\u30f3\u30d1\u30f3\u30de\u30f3"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhotomaru.hateblo.jp%2Fentry%2F20151127%2F1448572957\" title=\"#7 \u81f3\u9ad8\u306e\u5f1f\u5b50 - \u307b\u3068\u307e\u308b\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190"}