Umthamo uMbhalo

Ukusetshenziswa ngamajamo weJiyomethri ngenkuthalo kwenziwe ngokuphelele yonke imikhakha yezomnotho, umkhakha nokunye. Yingakho ngale ndaba ngakho balitadishisise e yezifundo zezikole. Kodwa hhayi sonke yingcweti kahle lokhu isayensi ezithakazelisayo, ngakho ukunakwa kwakho umenyiwe ukukhumbula ukuthi isilinda nokuthi ukubala umthamo yayo? Okungukuthi, ngaphambi kokuba uthole ukuthi yini ngevolumu uMbhalo, kubalulekile ukuqonda ukuthi yini babengamaphesenti. A dengezi - sibalo volumetric, ehlanganisa izinto ezilandelayo: tindilinga letimbili okucishe kufane nalokhu ezifanayo (alinganayo endaweni imibuthano) futhi yakha isilinda yokuxhuma mibuthano. Kodwa kukhona esinye isimo - uMbhalo bese eksisi yawo kumelwe perpendicular kokubili imibuthano, okungukuthi, umuntu Umbuthano ngokoqobo nesibuko isithombe nezinye.

Siye echazwe isibonelo kakhulu elula - a cylinder kwesokudla isiyingi. Kodwa ekuphileni singahlangabezana akubona kuphela, ngoba ngokwehlukahlukana kwabo omkhulu kangangokuthi ukuchaza kubo bonke cishe kungenakwenzeka. Kodwa ngeke siye futhi sibheke uMbhalo ezivamile elula. Ngakho, manje ukuthi siyazi ukuthi yini lo mbhalo, kungenzeka ukubala umthamo yayo. Futhi iyini lemali? Ngamanye amazwi, ungenza ukuqhathanisa kancane - ke uyikhono yasekuqaleni bomkhumbi. Kule ncazelo, kuyacaca ukuthi isici okufana asikwazi ukuba simise ephelele flat, futhi ngakuthathu, futhi Kojima isilinda.

Manje ake ukuhambisa kancane izibalo kanye ukubalisisa. Ukuze uthole ukuthi yini ivolumu uMbhalo kudingekile ukusebenzisa ifomula zonke owaziwa, lapho kulinganiselwa: V = πr² h

Manje cabanga zonke abakuzuzile ifomula:

V - Emqulwini ivolumu;

π - pi;

r - lo engaba umbuthano;

h - ukuphakama uMbhalo.

Nge ivolumu uMbhalo, thina esiphethweni obungazungeza engaba ecacile, futhi okungukuthi inombolo Pi futhi ukuphakama isilinda?

Pi - kuyinto njalo eveza ratio selilonke ubude ubukhulu bayo. Kukholakala ukuthi anda elilingana 3.14. Nakuba empeleni le nombolo lapho inamba ingxenye 10 isigidintathu amamaki (tekubala ngo-2011)! Kodwa ukuze kube lula, sisebenzisa usayizi ezivamile, ngoba thina akudingeki ephezulu ukucacisa izibalo. Nakuba, isibonelo, emkhathini usebenzisa inombolo enkulu okungenzeka izinhlamvu emva iphuzu zamadesimali!

Emqulwini ukuphakama - ibanga perpendicular phakathi izindiza zayo ezimbili, uma yethu - imibuthano. Engamamitha kuyinto generator uMbhalo. Futhi ezithakazelisayo kakhulu ukuthi lokhu value nse lonke ubude conjugated isilinda isiyingi.

Manje ngoba sewuyazi ukuthi zonke eziguquguqukayo kule ndaba, kukhona umbuzo ukuthi, futhi kungani enza kanjalo? Ake uchaze lokhu nge isibonelo ebhokisini. Wonke umuntu uyazi ukuthi umthamo yayo ilingana umkhiqizo Ubukhulu bayo abathathu: ubude, ububanzi nobude. A isizinda endaweni bangamaphesenti umkhiqizo obuphelele ebubanzini, ngamanye amazwi, It is etholwe ukuthi ivolumu iwumkhiqizo base isikwele ukuphakama. Manje, emuva isilinda wethu, zonke efanayo: V = Sh, lapho S - uMbhalo isizinda ndawo, ngoba base thina ubiyela, futhi endaweni Umbuthano: S = πr².

Manje siyazi ukuthi indlela ukubala umthamo we isilinda, kodwa angasinika? Uyini ngokoqobo kolwazi aluthola? Ekuphileni kwethu kwansuku zonke lolu lwazi lincishisiwe, isibonelo, kungenzeka ukubala ukuthi angakanani amanzi uyogcwalisa omunye into cylindrical njengoba zizongena izinto okubi ethile cylindrical esitsheni. Nakuba esingakwenza ngaphandle kwalo. Kodwa umkhakha ngaphandle kolwazi enjalo imane nje akakwazi ukukwenza. Ngokwesibonelo, emsebenzini wokukhiqiza amapayipi izinjongo ezihlukile ungakwazi ukubala malini uketshezi noma igesi iyaphela iyunithi isikhathi, njll ngayinye