Ch\u01b0\u01a1ng 8 -B\u00e0i 51: H\u1ec7 th\u1ee9c Anh-xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/chuong-8-bai-51-he-thuc-anh-xtanh-giua-khoi-luong-va-nang-luong\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 8 -B\u00e0i 51: H\u1ec7 th\u1ee9c Anh-xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng\" \/>\n<meta property=\"og:description\" content=\"C\u00c2U H\u1eceI C\u00e2u 1 (trang 259 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):\u00a0N\u00eau h\u1ec7 th\u1ee9c Anh \u2013 xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng. 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{"id":24973,"date":"2018-04-02T14:40:51","date_gmt":"2018-04-02T07:40:51","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=24973"},"modified":"2018-04-02T14:40:51","modified_gmt":"2018-04-02T07:40:51","slug":"chuong-8-bai-51-he-thuc-anh-xtanh-giua-khoi-luong-va-nang-luong","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-8-bai-51-he-thuc-anh-xtanh-giua-khoi-luong-va-nang-luong\/","title":{"rendered":"Ch\u01b0\u01a1ng 8 -B\u00e0i 51: H\u1ec7 th\u1ee9c Anh-xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng"},"content":{"rendered":"

C\u00c2U H\u1eceI<\/strong><\/p>\n

C\u00e2u 1 (trang 259 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):<\/b>\u00a0N\u00eau h\u1ec7 th\u1ee9c Anh \u2013 xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng.<\/span><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

H\u1ec7 th\u1ee9c Anh \u2013 xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng:<\/p>\n

$\"\"$ <\/p>\n

B\u00c0I T\u1eacP\u00a0<\/strong><\/p>\n

B\u00e0i 1 (trang 259 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):<\/b>\u00a0Theo thuy\u1ebft t\u01b0\u01a1ng \u0111\u1ed1i, kh\u1ed1i l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u1ed1i t\u00ednh c\u1ee7a m\u1ed9t v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nghi m_0 chuy\u1ec3n \u0111\u1ed9ng v\u1edbi v\u1eadn t\u1ed1c v l\u00e0:<\/span><\/p>\n

$\"\"$ <\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

Ch\u1ecdn B<\/p>\n

B\u00e0i 2 (trang 259 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):<\/b>\u00a0H\u1ec7 th\u1ee9c Anh \u2013 xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng l\u00e0:<\/span><\/p>\n

$\"\"$ <\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

Ch\u1ecdn D<\/p>\n

B\u00e0i 3 (trang 259 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):<\/b>\u00a0M\u1ed9t h\u1ea1t c\u00f3 \u0111\u1ed9ng n\u0103ng b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng ngh\u1ec9 c\u1ee7a n\u00f3. T\u00ednh t\u1ed1c \u0111\u1ed9 c\u1ee7a h\u1ea1t.<\/span><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

\u0110\u1ed9ng n\u0103ng c\u1ee7a h\u1ea1t b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng t\u0129nh ta c\u00f3 W_{\u0111<\/sub>\u00a0= m_{0<\/sub>\u00a0c^{2.<\/sup><\/p>\n}}}

N\u0103ng l\u01b0\u1ee3ng to\u00e0n ph\u1ea7n c\u1ee7a h\u1ea1t:<\/p>\n

$\"\"$ <\/p>\n

Gi\u1ea3i ra ta \u0111\u01b0\u1ee3c :<\/p>\n

$\"\"$ <\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00c2U H\u1eceI C\u00e2u 1 (trang 259 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):\u00a0N\u00eau h\u1ec7 th\u1ee9c Anh \u2013 xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng. L\u1eddi gi\u1ea3i: H\u1ec7 th\u1ee9c Anh \u2013 xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng: B\u00c0I T\u1eacP\u00a0 B\u00e0i 1 (trang 259 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):\u00a0Theo thuy\u1ebft t\u01b0\u01a1ng \u0111\u1ed1i, kh\u1ed1i l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u1ed1i […]<\/p>\n","protected":false},"author":3,"featured_media":24974,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1304],"tags":[1432,1431],"yoast_head":"\nCh\u01b0\u01a1ng 8 -B\u00e0i 51: H\u1ec7 th\u1ee9c Anh-xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/chuong-8-bai-51-he-thuc-anh-xtanh-giua-khoi-luong-va-nang-luong\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 8 -B\u00e0i 51: H\u1ec7 th\u1ee9c Anh-xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng\" \/>\n<meta property=\"og:description\" content=\"C\u00c2U H\u1eceI C\u00e2u 1 (trang 259 sgk V\u1eadt L\u00ed 12 n\u00e2ng cao):\u00a0N\u00eau h\u1ec7 th\u1ee9c Anh \u2013 xtanh gi\u1eefa kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng. 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