{"id":9937,"date":"2021-11-21T18:46:27","date_gmt":"2021-11-21T11:46:27","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=9937"},"modified":"2021-11-21T19:38:39","modified_gmt":"2021-11-21T12:38:39","slug":"vi-sao-khi-may-bay-bay-tren-khong-trung-co-vet-khoi-keo-dai","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-khi-may-bay-bay-tren-khong-trung-co-vet-khoi-keo-dai\/","title":{"rendered":"V\u00ec sao khi m\u00e1y bay bay tr\u00ean kh\u00f4ng trung c\u00f3 v\u1ec7t kh\u00f3i k\u00e9o d\u00e0i?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Khi bay tr\u00ean cao, c\u00f3 l\u00fac sau \u0111u\u00f4i m\u00e1y bay hi\u1ec7n ra m\u1ea5y v\u1ec7t kh\u00f3i tr\u1eafng gi\u1ed1ng nh\u01b0 d\u1ea3i l\u1ee5a n\u1ed5i tr\u00ean kh\u00f4ng trung, gi\u1eef m\u00e3i kh\u00f4ng tan. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u00e0 v\u1ec7t kh\u00f3i m\u00e1y bay. Nhi\u1ec1u ng\u01b0\u1eddi cho r\u1eb1ng, v\u1ec7t kh\u00f3i l\u00e0 do kh\u00f3i c\u1ee7a m\u00e1y bay nh\u1ea3 ra. T h\u1ef1c ra nh\u01b0 th\u1ebf l\u00e0 hi\u1ec3u nh\u1ea7m. Nh\u1eefng v\u1ec7t kh\u00f3i tr\u1eafng c\u1ee7a m\u00e1y bay m\u00e0 ch\u00fang ta nh\u00ecn th\u1ea5y th\u1ef1c ra kh\u00f4ng ph\u1ea3i l\u00e0 kh\u00f3i m\u00e0 l\u00e0 m\u1ed9t v\u1ec7t m\u00e2y \u0111\u1eb7c bi\u1ec7t, l\u00e0 s\u1ef1 ng\u01b0ng k\u1ebft c\u1ee7a h\u01a1i n\u01b0\u1edbc tr\u00ean qu\u1ef9 \u0111\u1ea1o m\u00e1y bay bay qua m\u00e0 th\u00e0nh. T rong kh\u00ed t\u01b0\u1ee3ng h\u1ecdc ng\u01b0\u1eddi ta g\u1ecdi \u0111\u00f3 l\u00e0 v\u1ec7t \u0111u\u00f4i m\u00e1y bay, c\u00f3 l\u00fac g\u1ecdi l\u00e0 v\u1ec7t \u0111u\u00f4i ng\u01b0ng k\u1ebft. T r\u01b0\u1edbc khi gi\u1ea3i th\u00edch qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh v\u1ec7t \u0111u\u00f4i m\u00e1y bay, ch\u00fang ta h\u00e3y xem x\u00e9t m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng kh\u00e1c: M\u00f9a \u0111\u00f4ng l\u1ea1nh gi\u00e1, khi th\u1edf ng\u01b0\u1eddi ta th\u01b0\u1eddng nh\u1ea3 ra m\u1ed9t \u0111\u00e1m s\u01b0\u01a1ng m\u00f9. Ch\u1ea5t kh\u00ed n\u00e0y v\u1eeba \u1ea5m l\u1ea1i v\u1eeba ch\u1ee9a nhi\u1ec1u h\u01a1i n\u01b0\u1edbc, g\u1eb7p ph\u1ea3i kh\u00f4ng kh\u00ed l\u1ea1nh, nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m nhanh, n\u00ean h\u01a1i n\u01b0\u1edbc trong \u0111\u00f3 ng\u01b0ng k\u1ebft th\u00e0nh nh\u1eefng gi\u1ecdt n\u01b0\u1edbc li ti nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c, \u0111\u00f3 ch\u00ednh l\u00e0 l\u00e0n m\u00e2y m\u00f9 ta nh\u00ecn th\u1ea5y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh v\u1ec7t \u0111u\u00f4i m\u00e1y bay c\u0169ng t\u01b0\u01a1ng t\u1ef1 hi\u1ec7n t\u01b0\u1ee3ng tr\u00ean. N\u00f3 l\u00e0 l\u1edbp kh\u00ed \u1ea5m c\u1ee7a m\u00e1y bay h\u1ed7n h\u1ee3p v\u1edbi kh\u00ed l\u1ea1nh b\u00ean ngo\u00e0i, khi\u1ebfn cho h\u01a1i n\u01b0\u1edbc trong kh\u00ed \u1ea5m c\u1ee7a m\u00e1y bay t\u0103ng l\u00ean r\u00f5 r\u1ec7t. N\u00f3i chung \u0111\u1ed1t ch\u00e1y 1 kg x\u0103ng c\u00f3 th\u1ec3 s\u1ea3n sinh ra 1,23 kg h\u01a1i n\u01b0\u1edbc v\u00e0 t\u1ecfa ra m\u1ed9t nhi\u1ec7t l\u01b0\u1ee3ng 43.260 kJ. Khi h\u01a1i n\u01b0\u1edbc tr\u00ean qu\u1ef9 \u0111\u1ea1o m\u00e1y bay \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t gi\u1edbi h\u1ea1n nh\u1ea5t \u0111\u1ecbnh, v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n m\u00e0 kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 ch\u1ee9a \u0111\u01b0\u1ee3c th\u00ec s\u1ebd s\u1ea3n sinh hi\u1ec7n t\u01b0\u1ee3ng s\u01b0\u01a1ng m\u00f9, \u0111\u00f3 l\u00e0 v\u1ec7t kh\u00f3i tr\u1eafng ta nh\u00ecn th\u1ea5y sau m\u00e1y bay.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec d\u00f2ng kh\u00ed kh\u00f4ng ng\u1eebng trao \u0111\u1ed5i v\u00e0 h\u01a1i n\u01b0\u1edbc b\u1ed1c h\u01a1i, cho n\u00ean kho\u1ea3ng 30 &#8211; 40 ph\u00fat sau v\u1ec7t \u0111u\u00f4i n\u00e0y s\u1ebd d\u1ea7n d\u1ea7n bi\u1ebfn m\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0ng trong qu\u00e1 tr\u00ecnh n\u00e0y, kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, v\u00ec s\u1ef1 h\u00ecnh th\u00e0nh c\u00f2n \u0111\u00f2i h\u1ecfi m\u1ed9t \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh. Khi m\u00e1y bay bay \u0111\u1ebfn \u0111\u1ed9 cao n\u00e0o \u0111\u00f3, nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng kh\u00ed \u1edf \u0111\u00f3 t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p (n\u00f3i chung th\u1ea5p h\u01a1n -40\u00b0C) m\u1edbi h\u00ecnh th\u00e0nh hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra h\u01a1i n\u01b0\u1edbc ch\u1ee9a trong kh\u00f4ng kh\u00ed c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh v\u1ec7t \u0111u\u00f4i. Cho n\u00ean khi tr\u00ean kh\u00f4ng c\u00f3 nh\u1eefng \u0111\u1ee5n m\u00e2y th\u00ec s\u1ed1 l\u1ea7n xu\u1ea5t hi\u1ec7n v\u1ec7t \u0111u\u00f4i c\u1ee7a m\u00e1y bay th\u01b0\u1eddng nhi\u1ec1u h\u01a1n khi tr\u1eddi xanh kh\u00f4ng c\u00f3 m\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec7t \u0111u\u00f4i m\u00e1y bay kh\u00f4ng \u1ea3nh h\u01b0\u1edfng g\u00ec \u0111\u1ebfn kh\u00f4ng kh\u00ed nh\u01b0ng v\u1ec1 m\u1eb7t qu\u00e2n s\u1ef1 l\u1ea1i c\u00f3 \u00fd ngh\u0129a chi\u1ebfn thu\u1eadt kh\u00f4ng th\u1ec3 xem th\u01b0\u1eddng \u0111\u01b0\u1ee3c. V\u1ec7t \u0111u\u00f4i m\u00e1y bay r\u1ea5t d\u1ec5 b\u1ed9c l\u1ed9 lo\u1ea1i m\u00e1y bay, v\u1ecb tr\u00ed, \u0111\u01b0\u1eddng bay v\u00e0 s\u1ed1 m\u00e1y bay. Do \u0111\u00f3 khi t\u00e1c chi\u1ebfn tr\u00ean kh\u00f4ng, ng\u01b0\u1eddi l\u00e1i m\u00e1y bay n\u00ean ch\u00fa \u00fd l\u1ee3i d\u1ee5ng ho\u1eb7c tr\u00e1nh xu\u1ea5t hi\u1ec7n v\u1ec7t \u0111u\u00f4i m\u00e1y bay.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T \u1eeb kho\u00e1: V\u1ec7t \u0111u\u00f4i m\u00e1y bay.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Khi bay tr\u00ean cao, c\u00f3 l\u00fac sau \u0111u\u00f4i m\u00e1y bay hi\u1ec7n ra m\u1ea5y v\u1ec7t kh\u00f3i tr\u1eafng gi\u1ed1ng nh\u01b0 d\u1ea3i l\u1ee5a n\u1ed5i tr\u00ean kh\u00f4ng trung, gi\u1eef m\u00e3i kh\u00f4ng tan. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u00e0 v\u1ec7t kh\u00f3i m\u00e1y bay. Nhi\u1ec1u ng\u01b0\u1eddi cho r\u1eb1ng, v\u1ec7t kh\u00f3i l\u00e0 do kh\u00f3i c\u1ee7a m\u00e1y bay nh\u1ea3 ra. T h\u1ef1c ra nh\u01b0 th\u1ebf [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,19],"tags":[],"class_list":["post-9937","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=9937"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9937\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}