{"id":1805,"date":"2013-08-11T11:41:55","date_gmt":"2013-08-11T09:41:55","guid":{"rendered":"http:\/\/www.zsvltava.cz\/fyzika\/?p=1805"},"modified":"2018-10-15T12:07:25","modified_gmt":"2018-10-15T10:07:25","slug":"jakou-hustotu-ma-kecup","status":"publish","type":"post","link":"https:\/\/www.zsvltava.cz\/fyzika\/?p=1805","title":{"rendered":"Jakou hustotu m\u00e1 ke\u010dup?"},"content":{"rendered":"

V obchod\u011b b\u00fdv\u00e1 u ka\u017ed\u00e9 potravina v tekut\u00e9m stavu na obale uveden\u00fd pom\u011br mezi hmotnost\u00ed a objemem – hustota<\/em>. \u010casto je hustota ud\u00e1v\u00e1na tak, aby z\u00e1kazn\u00edk na prvn\u00ed pohled neodli\u0161il vlastnosti 2 podobn\u00fdch v\u00fdrobk\u016f. Kter\u00fd z ke\u010dup\u016f m\u00e1 v\u011bt\u0161\u00ed hustotu?<\/strong> <\/p>\n

\"ke\u010dup\"<\/a> <\/p>\n

\n

\u0158e\u0161en\u00ed p\u0159\u00edkladu<\/h2>\n
\n

Jeliko\u017e n\u00e1m jde o porovn\u00e1n\u00ed dvou \u010d\u00edsel, sta\u010d\u00ed n\u00e1m, aby m\u011bla ob\u011b \u010d\u00edsla stejnou jednotku. Nemus\u00edme tedy p\u0159ev\u00e1d\u011bt na z\u00e1kladn\u00ed jednotku hustoty \u2013 kg\/m3<\/sup>.<\/p>\n

\n
\n

mA<\/sub> = 700 g
\nVA<\/sub> = 605 ml
\nρA<\/sub> = ? g\/ml<\/p>\n<\/div>\n

\n

mB<\/sub> = 535 g
\nVB<\/sub> = 500 ml
\nρB<\/sub> = ? g\/ml<\/p>\n<\/div>\n<\/div>\n

\n

  <\/span>   <\/span>\"\[<\/p>\n

  <\/span>   <\/span>\"\[<\/p>\n

V\u011bt\u0161\u00ed hustotu m\u00e1 ke\u010dup A.<\/strong>\n<\/div>\n

Mus\u00ed v\u011bt\u0161\u00ed hustota nutn\u011b znamenat v\u011bt\u0161\u00ed kvalitu?<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

V obchod\u011b b\u00fdv\u00e1 u ka\u017ed\u00e9 potravina v tekut\u00e9m stavu na obale uveden\u00fd pom\u011br mezi hmotnost\u00ed a objemem – hustota. \u010casto je hustota ud\u00e1v\u00e1na tak, aby …. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,39],"tags":[32,29,23],"class_list":["post-1805","post","type-post","status-publish","format-standard","hentry","category-priklad","category-priklady-pro-6-rocnik","tag-objem-a-hustota","tag-prevody-jednotek","tag-reseny-priklad"],"_links":{"self":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/1805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1805"}],"version-history":[{"count":0,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=\/wp\/v2\/posts\/1805\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1805"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1805"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zsvltava.cz\/fyzika\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}