Sports me Fitness, Mate taimaha
Me pēhea te ki te tātai i te ōwehenga o
Tetahi taonga He āhuatanga. Na nga āhuatanga matua o tetahi taonga - te taimaha, - ranei kaua, mahara motuhake, te ōwehenga o ngā te taimaha tinana me te rōrahi nohoia e tenei te tinana. Nā tēnei, ahua i te faaotiraa pūkaha o te mea. Na roto i reira hanga tatou i te nekehanga ki te whakamāramatanga mara o kounga. he kore mea he papatipu amorphous, tiaki ki tona pokapū o te mahara mo tatou. Well, mo te tauira - te pūnaha solar - he rerekē i roto i te mahara motuhake (e pā ana ki te pehea, ki te tātai i te rahi - tika i raro) katoa o tona tinana, kia rite ki te hunga tona taimaha, me ona rōrahi. Ki te tango tatou i motu ke to tatou whenua, me ona anga (lithosphere, ōnuku, huru), huri i te reira i roto i taua whai ratou he taimaha motuhake, rerekē, me te takitahi.
Waihoki, ko te huānga matū takitahi i to ratou taimaha, anake ki te whai ngota. Ko reira ano hoki te faaiteraa o te mahara motuhake. Ratau, i reira e noa he torutoru āhuatanga e kia hakari i roto i te puka parakore, engari ko te tikanga pūmau katoa -connection atu, me te te mohiotia rite matū ohie. Ko te lithosphere o to tatou paraneta neke atu i rima rau, ia - me ona ake te taimaha motuhake. Me pēhea te ki te tātai i te ōwehenga o? A i whānui, reira e taea te mahi?
O te akoranga. Te reira i whakaaro inaianei pehea ki te tātai i te mahara motuhake. He pai ki te mahi i te reira i runga i tauira raima ki te hanga i mārama ai.
1. Hei tauira, koe - te upoko o te toa woodworking me te hiahia ki te mohio me pehea ki te tātai i te ōwehenga o te hoko o taonga motuhake ranei te mahi o te rauemi i roto i tenei take. kia mohiotia te reira: te uara o hoko o te hua ngā, me te rōrahi katoa. Pea to tatou: hua - moni poari - 15500 (RUB), te ōwehenga - 81,6%; moni rakau - - hua 30000 (RUB), te ōwehenga o 15.8% i te pauna; hua - papa, moni - 190000 (RUB), te ōwehenga o 2.6%. Tapeke: moni - 190000, me te rahi (ngā), aua, 100%. Me pēhea te ki te tātai i te ōwehenga o te poari? Wehe 155000 ki 190000, a ka tini i te rau. whiwhi tatou 81,6%. Ko te mahara motuhake o te poari tenei.
2. Me pēhea te ki te tātai i te rahi o tetahi taonga?
Kei te maha te wahi o te take raruraru ki te kiato, ahakoa he tino rerekē nga ariā. e kore e mahara Motuhake tono ki ngā āhuatanga tinana, me te matū, ka rerekē i te kiato o, mea, te papatipu o te taimaha.
. 2.1) Kiato - te ōwehenga papatipu o te rōrahi me te taimaha motuhake - taimaha ki ōwehenga rōrahi, e taea te tuhituhi tenei tātai rite: γ = mg / V. A ki te mea ko te kiato te ōwehenga o te taimaha tomu'a ki te rōrahi o te tinana, te tātai mō te te kimi i te taimaha motuhake, aua, e taea te tuhituhi i roto i tenei puka: γ = ρg.
2.2.) Ki te hiahiatia, ka taea te kitea i te mahara motuhake i roto i te nuinga, me te taimaha, he ara whakamātau ranei, i te whakatairite i te uara pēhanga. Here, i roto i te akoranga ka whārite hydrostatic: P = Po + γh. Ko ko tenei tikanga hāngai anake i roto i te take, ina mohio koe katoa, kaore he aweretanga, te uara i whanganga. I roto i tenei take, te rahi o te kimi tātai riro te puka e whai ake nei: γ = P-Po / h. Kei te te tikanga te whārite e whakamahia ana ki te whakaahua i nga oko kōrero me o ratou mahi. I runga i te pūtake o te raraunga whakamātautau he mutunga ataahua: ia taonga i roto i te oko kōrero, ka whai ona ake teitei me ona tere ake o te horahanga me te taiepa o te oko i roto i nei tenei taonga, ko te.
2.3.) I roto i te tikanga ki te tātai (tātai) te rahi, ka taea e koe te tono i tetahi atu tātai (Archimedes kaha). Kia mahara haapiiraa kura o ahupūngao? Pea nga wae whakautu faaiteraa anake. Na reira, tāmata tatou te mahara: te kaha Archimedes silyl puāwai. Kī kawenga homai he tetahi taimaha (denoted tenei taimaha ko rite te "m"), e pupuri i runga i ki te wai. I tenei wāhi, pā te kawenga nga ope e rua, ko te tuatahi - te kaha o te mahara, me te tuarua - Archimedes (puāwai kaha, me te aronga o te pere ka hei mg inversely). I roto i te tātai, ko te kaha titiro o Archimedes rite tenei: Fapx = ρgV. E matau e ki te taimaha rite motuhake ρg inu, whiwhi tatou i te whārite e whai ake nei: Fapx = yV, a deduce tatou: y = Fapx / V.
Uaua? Na ka faaohie tatou: i roto i te tikanga ki te tātai i te rahi, wehe te taimaha e te rōrahi.
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