{"id":39587,"date":"2021-09-16T10:00:00","date_gmt":"2021-09-16T13:00:00","guid":{"rendered":"https:\/\/www.ufrgs.br\/amlef\/?p=39587"},"modified":"2021-09-22T01:14:28","modified_gmt":"2021-09-22T04:14:28","slug":"capitulo-5-lancando-se-no-espaco","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/amlef\/2021\/09\/16\/capitulo-5-lancando-se-no-espaco\/","title":{"rendered":"Cap\u00edtulo 5: Lan\u00e7ando-se no espa\u00e7o"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/Bolinha-831x1024.jpg\" alt class=\"wp-image-39738\" width=\"192\" height=\"236\" srcset=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/Bolinha-831x1024.jpg 831w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/Bolinha-244x300.jpg 244w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/Bolinha-768x946.jpg 768w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/Bolinha-1247x1536.jpg 1247w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/Bolinha-1663x2048.jpg 1663w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/Bolinha-205x252.jpg 205w\" sizes=\"auto, (max-width: 192px) 100vw, 192px\"><figcaption>Figura 1. Repre\u00adsen\u00adta\u00ad\u00e7\u00e3o da queda de uma folha de papel e de uma bolinha de&nbsp;papel.<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">No cap\u00ed\u00adtulo \u201ccomo sair da Terra\u201d apren\u00adde\u00admos que h\u00e1 uma rela\u00e7\u00e3o forte entre a gra\u00advi\u00addade e qual\u00adquer pos\u00adsi\u00adbi\u00adli\u00addade de sair da atmos\u00adfera ter\u00adres\u00adtre, por\u00e9m outro ele\u00admento impor\u00adtante da nossa jornada ao espa\u00e7o \u00e9 a resis\u00adt\u00ean\u00adcia do ar. No ensino m\u00e9dio apren\u00adde\u00admos a des\u00adcon\u00adsi\u00adde\u00adrar a resis\u00adt\u00ean\u00adcia do ar, mas em altas velo\u00adci\u00adda\u00addes e na nossa viagem espa\u00adcial con\u00adsi\u00adder\u00e1-la \u00e9 fun\u00adda\u00admen\u00adtal. Um expe\u00adri\u00admento simples da influ\u00ean\u00adcia da resis\u00adt\u00ean\u00adcia do ar, que voc\u00ea pode fazer em casa, \u00e9 obser\u00advar o movi\u00admento de queda de uma folha e uma bolinha de&nbsp;papel.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"277\" height=\"300\" src=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/ALISSON-1-277x300.jpg\" alt class=\"wp-image-39707\" srcset=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/ALISSON-1-277x300.jpg 277w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/ALISSON-1-944x1024.jpg 944w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/ALISSON-1-768x833.jpg 768w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/ALISSON-1-1416x1536.jpg 1416w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/ALISSON-1-1888x2048.jpg 1888w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/ALISSON-1-205x222.jpg 205w\" sizes=\"auto, (max-width: 277px) 100vw, 277px\"><figcaption>Figura 2. Dia\u00adgrama de for\u00e7as atuando em um foguete, durante seu lan\u00ad\u00e7a\u00admento. Adap\u00adtado de:<a rel=\"noreferrer noopener\" href=\"https:\/\/pixabay.com\/pt\/photos\/lan%c3%a7amento-do-foguete-foguete-67723\/\" target=\"_blank\"> Pixabay<\/a> .<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Para sair da atmos\u00adfera rumo ao espa\u00e7o, pre\u00adci\u00adsa\u00admos pensar em como con\u00adtor\u00adnar essa \u201cresis\u00adt\u00ean\u00adcia\u201d que ocorre na atmos\u00adfera. Algumas pe\u00e7as fun\u00adda\u00admen\u00adtais para enten\u00adder esse movi\u00admento s\u00e3o: as for\u00e7as de resis\u00adt\u00ean\u00adcia do ar (ou de <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\">arrasto<\/a>), o<a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/propulsao-de-foguetes-empuxo\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/propulsao-de-foguetes-empuxo\/\"> empuxo (ou empuxo din\u00e2\u00admico)<\/a> e a for\u00e7a da gra\u00advi\u00addade, como demons\u00adtrado na figura 2.&nbsp; A <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\">for\u00e7a de arrasto<\/a> depende de dois fatores essen\u00adci\u00adal\u00admente, a velo\u00adci\u00addade do objeto em rela\u00e7\u00e3o ao ar e a forma do foguete. Para mini\u00admi\u00adzar a for\u00e7a de arrasto asso\u00adci\u00adada \u00e0 forma, os fogue\u00adtes t\u00eam sua extre\u00admi\u00addade em forma de cone inver\u00adtido, chamado de nariz (ogiva). O <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/propulsao-de-foguetes-empuxo\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/propulsao-de-foguetes-empuxo\/\">empuxo din\u00e2\u00admico<\/a> \u00e9 a for\u00e7a que impul\u00adsi\u00adona o foguete na libe\u00adra\u00ad\u00e7\u00e3o dos gases oriun\u00addos da com\u00adbus\u00adt\u00e3o em seus motores.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Durante seu per\u00adcurso, o foguete expe\u00adri\u00admenta, como parte do <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\">arrasto<\/a>, a chamada press\u00e3o din\u00e2\u00admica, que \u00e9 uma press\u00e3o que se deve ao movi\u00admento. \u00c9 aquela mesma que expe\u00adri\u00admen\u00adta\u00admos quando andamos em um ve\u00edculo com a janela aberta: mesmo que n\u00e3o haja vento, sen\u00adti\u00admos como se hou\u00advesse, pois nos des\u00adlo\u00adca\u00admos com velo\u00adci\u00addade em rela\u00e7\u00e3o ao ar que est\u00e1 parado. Essa press\u00e3o pode ser t\u00e3o intensa a ponto de dani\u00adfi\u00adcar o foguete e, por\u00adtanto, precisa ser considerada.<\/p>\n\n\n<p>A press\u00e3o din\u00e2\u00admica segue a equa\u00e7\u00e3o <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?\\inline&amp;space;q=&amp;space;\\frac{1}{2}\\rho&amp;space;v^{2}\" alt=\"\\inline q= \\frac{1}{2}\\rho v^{2}\" align=\"absmiddle\">, onde <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?\\inline&amp;space;q\" alt=\"\\inline q\" align=\"absmiddle\"> \u00e9 a press\u00e3o, <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?\\inline&amp;space;\\rho\" alt=\"\\inline \\rho\" align=\"absmiddle\"> \u00e9 a den\u00adsi\u00addade do ar junto ao objeto e <img decoding=\"async\" src=\"https:\/\/latex.codecogs.com\/gif.latex?\\inline&amp;space;v\" alt=\"\\inline v\" align=\"absmiddle\"> \u00e9 a velo\u00adci\u00addade deste. Ora, se a velo\u00adci\u00addade \u00e9 nula no lan\u00ad\u00e7a\u00admento e a den\u00adsi\u00addade atmos\u00adf\u00e9\u00adrica \u00e9 nula no v\u00e1cuo do espa\u00e7o, essa press\u00e3o tamb\u00e9m vai ser nula nesses pontos; mas em algum ponto durante o lan\u00ad\u00e7a\u00admento dentro da atmos\u00adfera, ela vai passar por um m\u00e1ximo. Con\u00adsi\u00adde\u00adrando que a cons\u00adtru\u00ad\u00e7\u00e3o do foguete pos\u00adsi\u00adbi\u00adlita que ele aguente at\u00e9 certos valores de press\u00e3o com segu\u00adran\u00e7a, a velo\u00adci\u00addade de lan\u00ad\u00e7a\u00admento tem que ser con\u00adtro\u00adlada para que a press\u00e3o m\u00e1xima durante o voo n\u00e3o ultra\u00adpasse esse limiar. Por esse motivo, os fogue\u00adtes n\u00e3o s\u00e3o lan\u00ad\u00e7a\u00addos com seus motores em pot\u00ean\u00adcia m\u00e1xima at\u00e9 atingir certa altura na atmos\u00adfera, onde o ar \u00e9 mais rarefeito.<\/p>\n\n\n<p class=\"wp-block-paragraph\">A atmos\u00adfera tamb\u00e9m demons\u00adtra sua influ\u00ean\u00adcia no retorno \u00e0 Terra. Durante a reen\u00adtrada, ao ingres\u00adsar na <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/atmosfera\/?perpage=12&amp;order=ASC&amp;orderby=title&amp;search=ultra&amp;pos=0&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/atmosfera\/?perpage=12&amp;order=ASC&amp;orderby=title&amp;search=ultra&amp;pos=0&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\">atmos\u00adfera ter\u00adres\u00adtre<\/a>, a nave encon\u00adtra-se em velo\u00adci\u00adda\u00addes ultras\u00ads\u00f4\u00adni\u00adcas, com grande <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/energia-cinetica\/?perpage=12&amp;order=DESC&amp;orderby=date&amp;search=energia%20cin%C3%A9tica&amp;pos=12&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/energia-cinetica\/?perpage=12&amp;order=DESC&amp;orderby=date&amp;search=energia%20cin%C3%A9tica&amp;pos=12&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\">energia cin\u00e9\u00adtica<\/a>. Para n\u00e3o espa\u00adti\u00adfar-se no ch\u00e3o, \u00e9 neces\u00ads\u00e1\u00adrio reduzir a velo\u00adci\u00addade da nave, e isso ocorre em diver\u00adsas etapas.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/AmaragemApollo9-1024x869.jpeg\" alt class=\"wp-image-39747\" width=\"256\" height=\"217\" srcset=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/AmaragemApollo9-1024x869.jpeg 1024w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/AmaragemApollo9-300x255.jpeg 300w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/AmaragemApollo9-768x652.jpeg 768w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/AmaragemApollo9-205x174.jpeg 205w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/AmaragemApollo9.jpeg 1280w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\"><figcaption>Figura 3. Dia\u00adgrama de for\u00e7as atuando em um para\u00adque\u00addas. Foto ori\u00adgi\u00adnal: Ama\u00adra\u00adgem da nave espa\u00adcial Apollo 9. Adap\u00adtado de:&nbsp;NASA.<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Em um pri\u00admeiro momento, a nave colide com a <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/atmosfera\/?perpage=12&amp;order=ASC&amp;orderby=title&amp;search=ultra&amp;pos=0&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/atmosfera\/?perpage=12&amp;order=ASC&amp;orderby=title&amp;search=ultra&amp;pos=0&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\">atmos\u00adfera<\/a>. Essa colis\u00e3o causa um enorme aumento de press\u00e3o, que leva \u00e0 <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/compressao-adiabatica\/?perpage=12&amp;order=DESC&amp;orderby=date&amp;pos=1&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/compressao-adiabatica\/?perpage=12&amp;order=DESC&amp;orderby=date&amp;pos=1&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\">com\u00adpres\u00ads\u00e3o adi\u00ada\u00adb\u00e1\u00adtica<\/a> do g\u00e1s e seu aumento de tem\u00adpe\u00adra\u00adtura. Este efeito pode ser t\u00e3o intenso a ponto de ionizar o g\u00e1s, emi\u00adtindo luz e outras ondas ele\u00adtro\u00admag\u00adn\u00e9\u00adti\u00adcas, como r\u00e1dio e micro-ondas. Todo esse pro\u00adcesso causa uma grande dis\u00adsi\u00adpa\u00ad\u00e7\u00e3o de energia, redu\u00adzindo muito a velo\u00adci\u00addade da nave. Depen\u00addendo da incli\u00adna\u00ad\u00e7\u00e3o com que a nave entra na atmos\u00adfera, ela pode ser empur\u00adrada de volta ao espa\u00e7o ou passar por um estresse t\u00e3o grande que cause danos \u00e0 sua estru\u00adtura ou carga e passageiros.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ap\u00f3s a reen\u00adtrada, a nave con\u00adti\u00adnua sofrendo efeitos da resis\u00adt\u00ean\u00adcia do ar. Devido a sua alta velo\u00adci\u00addade, a <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\">for\u00e7a de arrasto <\/a>\u00e9 maior do que a for\u00e7a gra\u00advi\u00adta\u00adci\u00ado\u00adnal, e a nave segue desa\u00adce\u00adle\u00adrando. Como a den\u00adsi\u00addade atmos\u00adf\u00e9\u00adrica \u00e9 maior quanto mais pr\u00f3ximo da super\u00adf\u00ed\u00adcie, esse efeito \u00e9 gra\u00adda\u00adtivo e, quando a velo\u00adci\u00addade \u00e9 pequena o sufi\u00adci\u00adente, a nave pode abrir seus para\u00adque\u00addas sem risco de que estes se rompam.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O efeito do para\u00adque\u00addas pode ser enten\u00addido da seguinte maneira: a super\u00adf\u00ed\u00adcie de contato com o ar \u00e9 ampli\u00adada no momento em que ele se abre, fazendo com que a <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\">for\u00e7a de resis\u00adt\u00ean\u00adcia do ar<\/a> aumente, alte\u00adrando o equi\u00adl\u00ed\u00adbrio das <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\">for\u00e7as de arrasto<\/a> e da gra\u00advi\u00addade. Quando a for\u00e7a de arrasto e da gra\u00advi\u00addade se equi\u00adli\u00adbram, a nave atinge o que \u00e9 chamado de <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/velocidade-terminal\/?perpage=12&amp;order=DESC&amp;orderby=date&amp;pos=2&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/velocidade-terminal\/?perpage=12&amp;order=DESC&amp;orderby=date&amp;pos=2&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\">velo\u00adci\u00addade termina<\/a>l, pois a for\u00e7a total que age sobre ela \u00e9 nula e n\u00e3o h\u00e1 ace\u00adle\u00adra\u00ad\u00e7\u00e3o. Com o para\u00adque\u00addas aberto, a velo\u00adci\u00addade ter\u00admi\u00adnal da nave \u00e9 baixa o sufi\u00adci\u00adente para que ela caia no ch\u00e3o, ou na \u00e1gua, sem maiores danos.<\/p>\n\n\n\n<div style=\"height:1px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator\">\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Curi\u00ado\u00adsi\u00addade: O para\u00adque\u00addas do gato! Gatos podem sobre\u00advi\u00adver \u00e0 queda de grandes alturas!? Na queda de um gato de grandes alturas, ocorre o mesmo efeito do para\u00adque\u00addas. Durante a queda, a for\u00e7a da gra\u00advi\u00addade atua em favor do movi\u00admento de queda livre e a <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/forca-de-arrasto\/\">for\u00e7a resis\u00adt\u00ean\u00adcia do ar<\/a> atua no sentido oposto ao movi\u00admento, para equi\u00adli\u00adbrar as for\u00e7as o gato se estica, aumen\u00adtando a sua \u00e1rea de contato com o ar.&nbsp; No equi\u00adl\u00ed\u00adbrio das for\u00e7as, o gato passa a ter uma <a href=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/velocidade-terminal\/?perpage=12&amp;order=DESC&amp;orderby=date&amp;pos=2&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\" data-type=\"URL\" data-id=\"https:\/\/www.ufrgs.br\/amlef\/glossario\/velocidade-terminal\/?perpage=12&amp;order=DESC&amp;orderby=date&amp;pos=2&amp;source_list=collection&amp;ref=%2Famlef%2Fglossario%2F\">velo\u00adci\u00addade ter\u00admi\u00adnal<\/a> baixa o sufi\u00adci\u00adente para n\u00e3o se esbor\u00adra\u00adchar no&nbsp;ch\u00e3o.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"184\" src=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/GatoVoador-300x184.jpeg\" alt class=\"wp-image-39753\" srcset=\"https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/GatoVoador-300x184.jpeg 300w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/GatoVoador-1024x630.jpeg 1024w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/GatoVoador-768x472.jpeg 768w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/GatoVoador-205x126.jpeg 205w, https:\/\/www.ufrgs.br\/amlef\/wp-content\/uploads\/2021\/09\/GatoVoador.jpeg 1280w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><figcaption> Figura 4. Foto de um gato durante queda. Adap\u00adtado de: <a rel=\"noreferrer noopener\" href=\"https:\/\/best-wallpaper.net\/Cat-flying-paws-as-wings-white-background_wallpapers.html\" data-type=\"URL\" data-id=\"https:\/\/best-wallpaper.net\/Cat-flying-paws-as-wings-white-background_wallpapers.html\" target=\"_blank\">Free Wall\u00adpa\u00adper<\/a>. <\/figcaption><\/figure><\/div>\n\n\n\n<h5 class=\"has-text-align-right wp-block-heading\"><strong>\u00c1lisson<\/strong> <strong>Francisco Schneider Siebeneichler e Rog\u00e9rio Nunes Wolff \/ Equipe AMLEF&nbsp;2021<\/strong><\/h5>\n\n\n\n<hr class=\"wp-block-separator\">\n\n\n\n<h2 class=\"wp-block-heading\">Saiba mais:<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"BBC: Por que os gatos sobrevivem a quedas de grandes alturas?\">BBC: Por que os gatos sobre\u00advi\u00advem a quedas de grandes alturas?<\/a><\/li><li><a href=\"https:\/\/www.youtube.com\/watch?v=TWRUsaOeNig\" data-type=\"URL\" data-id=\"https:\/\/www.youtube.com\/watch?v=TWRUsaOeNig\">Inte\u00adgrando Conhe\u00adci\u00admento: Como os fogue\u00adtes fun\u00adci\u00ado\u00adnam?&nbsp;f\u00e1cil<\/a><\/li><\/ul>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\">\n\n\n\n<h2 class=\"wp-block-heading\">Refer\u00eancias:<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li><a href=\"Ufpel: Os aspectos f\u00edsicos e matem\u00e1ticos do lan\u00e7amento do foguete de garrafa pet \">Ufpel: Os aspec\u00adtos f\u00edsicos e mate\u00adm\u00e1\u00adti\u00adcos do lan\u00ad\u00e7a\u00admento do foguete de garrafa pet&nbsp;<\/a><\/li><li><a href=\"https:\/\/muralcientifico.com\/2018\/01\/24\/como-funcionam-os-foguetes\/\" data-type=\"URL\" data-id=\"https:\/\/muralcientifico.com\/2018\/01\/24\/como-funcionam-os-foguetes\/\">COMO FUNCIONAM OS&nbsp;FOGUETES?<\/a><\/li><li><a href=\"http:\/\/ftp.demec.ufpr.br\/foguete\/apostila\/Capitulo-4_Aerodinamica_de_foguetemodelo_v3b.pdf\" data-type=\"URL\" data-id=\"http:\/\/ftp.demec.ufpr.br\/foguete\/apostila\/Capitulo-4_Aerodinamica_de_foguetemodelo_v3b.pdf\">Aero\u00addi\u00adn\u00e2\u00admica de foguetemodelo<\/a><\/li><li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Rocket\" data-type=\"URL\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Rocket\">Wiki\u00adp\u00e9\u00addia ingl\u00eas: Rocket<\/a><\/li><li><a href=\"https:\/\/brasilescola.uol.com.br\/fisica\/como-funciona-o-lancamento-de-um-foguete.htm\" data-type=\"URL\" data-id=\"https:\/\/brasilescola.uol.com.br\/fisica\/como-funciona-o-lancamento-de-um-foguete.htm\">Como fun\u00adci\u00adona o lan\u00ad\u00e7a\u00admento de um foguete<\/a><\/li><li><a href=\"https:\/\/web.moderna.com.br\/html\/html5\/foguete\/\" data-type=\"URL\" data-id=\"https:\/\/web.moderna.com.br\/html\/html5\/foguete\/\">Est\u00e1gio do lan\u00ad\u00e7a\u00admento de um foguete<\/a><\/li><li><a href=\"https:\/\/escola.britannica.com.br\/artigo\/foguete\/482384\" data-type=\"URL\" data-id=\"https:\/\/escola.britannica.com.br\/artigo\/foguete\/482384\">Bri\u00adtan\u00adnica: Foguete<\/a><\/li><li><a href=\"https:\/\/educacao.uol.com.br\/disciplinas\/fisica\/reacao-de-empuxo-como-os-foguetes-se-locomovem.htm\" data-type=\"URL\" data-id=\"https:\/\/educacao.uol.com.br\/disciplinas\/fisica\/reacao-de-empuxo-como-os-foguetes-se-locomovem.htm\">Rea\u00e7\u00e3o de empuxo \u2014 Como os fogue\u00adtes se locomovem?<\/a><\/li><li><a href=\"https:\/\/mundoeducacao.uol.com.br\/fisica\/forca-resistencia-ar.htm\" data-type=\"URL\" data-id=\"https:\/\/mundoeducacao.uol.com.br\/fisica\/forca-resistencia-ar.htm\">For\u00e7a de Resis\u00adt\u00ean\u00adcia do&nbsp;Ar<\/a><\/li><li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Max_q\" data-type=\"URL\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Max_q\">Wiki\u00adp\u00e9\u00addia ingl\u00eas: Press\u00e3o din\u00e2\u00admica m\u00e1xima<\/a><\/li><li><a href=\"https:\/\/pt.wikipedia.org\/wiki\/Amaragem\" data-type=\"URL\" data-id=\"https:\/\/pt.wikipedia.org\/wiki\/Amaragem\">Wiki\u00adp\u00e9\u00addia por\u00adtu\u00adgu\u00eas: Amaragem<\/a><\/li><li><a href=\"https:\/\/canaltech.com.br\/espaco\/como-os-astronautas-voltam-para-a-terra-180006\/\" data-type=\"URL\" data-id=\"https:\/\/canaltech.com.br\/espaco\/como-os-astronautas-voltam-para-a-terra-180006\/\">Como os astro\u00adnau\u00adtas voltam \u00e0 Terra ap\u00f3s miss\u00f5es espaciais?<\/a><\/li><li><a href=\"https:\/\/cref.if.ufrgs.br\/?contact-pergunta=propulsao-de-foguetes-no-espaco-como-e-possivel-o-empuxo-se-nao-existe-atmosfera\">Pro\u00adpul\u00ads\u00e3o de fogue\u00adtes no espa\u00e7o: como \u00e9 pos\u00ads\u00ed\u00advel o empuxo se n\u00e3o existe atmosfera?<\/a><\/li><li><a href=\"https:\/\/cref.if.ufrgs.br\/?contact-pergunta=duvida-sobre-meteoro-causa-do-aquecimento-e-razao-da-interferencia-com-as-telecomunicacoes\">D\u00favida sobre meteoro: causa do aque\u00adci\u00admento e raz\u00e3o da inter\u00adfe\u00adr\u00ean\u00adcia com as telecomunica\u00e7\u00f5es<\/a><\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"<p>No cap\u00ed\u00adtulo \u201ccomo sair da Terra\u201d apren\u00adde\u00admos que h\u00e1 uma rela\u00e7\u00e3o forte entre a gra\u00advi\u00addade e qual\u00adquer pos\u00adsi\u00adbi\u00adli\u00addade de sair da atmos\u00adfera ter\u00adres\u00adtre, por\u00e9m outro ele\u00admento impor\u00adtante da nossa jornada ao espa\u00e7o \u00e9 a resis\u00adt\u00ean\u00adcia do ar. No ensino m\u00e9dio apren\u00adde\u00admos a des\u00adcon\u00adsi\u00adde\u00adrar a resis\u00adt\u00ean\u00adcia do ar, mas em altas velo\u00adci\u00adda\u00addes e na nossa viagem&nbsp;[\u2026]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","wp_typography_post_enhancements_disabled":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[432,571],"tags":[],"class_list":["post-39587","post","type-post","status-publish","format-standard","hentry","category-destaques","category-exposicaomanualespacial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cap\u00edtulo 5: Lan\u00e7ando-se no espa\u00e7o - Museu dos Laborat\u00f3rios de Ensino de F\u00edsica - Em Transi\u00e7\u00e3o<\/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:\/\/www.ufrgs.br\/amlef\/2021\/09\/16\/capitulo-5-lancando-se-no-espaco\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cap\u00edtulo 5: Lan\u00e7ando-se no espa\u00e7o - Museu dos Laborat\u00f3rios de Ensino de F\u00edsica - Em Transi\u00e7\u00e3o\" \/>\n<meta property=\"og:description\" content=\"No cap\u00ed\u00adtulo \u201ccomo sair da Terra\u201d apren\u00adde\u00admos que h\u00e1 uma rela\u00e7\u00e3o forte entre a gra\u00advi\u00addade e qual\u00adquer pos\u00adsi\u00adbi\u00adli\u00addade de sair da atmos\u00adfera ter\u00adres\u00adtre, por\u00e9m outro ele\u00admento impor\u00adtante da nossa jornada ao espa\u00e7o \u00e9 a resis\u00adt\u00ean\u00adcia do ar. 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