Kulemera yeniyeni

Mwina osati ophunzira amene sanamvepo zotsatirazi vuto: "Chapafupi n'chiti - ndi kilo wa kufwanyulira kapena kilogalamu njerwa?". Chinthu chidwi n'chakuti, ngakhale zamkhutu mawu, ambiri atenge nawo mbali pa mtsutso achabechabe. Pamene panali nawo mchitidwe chikhalidwe - silikudziwika, koma zikhoza kapadera kuti adziwe deta kulemera kwa zinthu ozungulira zochokera tikayerekezera makhalidwe awo chochuluka wakhala kuyambira nthawi ya Archimedes. makhalidwe zenizeni anazindikira kuti maganizo a ena makhalidwe anayeza Mwachitsanzo, kulemera ndi buku. Kuwerengetsa chiwerengero cha G ndi alionse:

G = P / V, ndi muyeso wagawo mu SI - N / mita kiyubiki.

Kulemera - muyeso yokoka Lapansi, ndipo yokoka enieni chifukwa kuti si khalidwe thupi la zinthu, kuyambira zimatengera pa malo miyezo. Ndi chiyani icho kukhala? Kumbukirani kuti kulemera P - ndi Mphamvu mphamvu khalidwe munda, zomwe zimagwiritsa inertial makhalidwe mankhwala misa m, ndi mathamangitsidwe ufulu kugwa g. Komano, ga - vacillates ndi zimatengera, kuphatikizapo, ndi kwa ndondomeko lawolawo. Popeza Newton yoyamba malamulo P = mamita * ga nthawi zonse zomveka, n'zotheka kunena kuti masiyanidwe kulemera pa nthawi yomweyo ndi kusintha mathamangitsidwe yokoka.

Tanthauzo mtundu: "The gawo - ndi chiŵerengero thupi kwa buku lake." Komabe, kuphweka umenewu uli Kuvuta yokulirapo ndithu - pachithunzichi mayunitsi ntchito zinachititsa kuti chisokonezo mfundo zokhudza thupi ndi thupi. Monga amadziwika, dongosolo misa Unit (SI) ndi wofanana makilogalamu 1, ndi mphamvu m'dziko lino, monga mwa chilamulo Newton, iwo amayezedwa newtons, ndi 1h = 0,102 makilogalamu * 9,8 m / gawo. sq.

Ntchito zambiri luso Newton mphamvu unit penapake kovuta, ngakhale anapitiriza kulenga latsopano dongosolo muyeso - yokoka chinkafunika dongosolo. Iwo unalembedwa mayunitsi wosanganiza wa muyeso: mita - kgf - chachiwiri. Kodi amapereka? Iwo zimatithandiza ntchito mayunitsi mphamvu moyo weniweniwo chifukwa yemweyo n'zosangalatsa kumva mawu a kulemera yeniyeni ndi yokoka yeniyeni, mwachitsanzo kachulukidwe mu machitidwe osiyana, malinga mathamangitsidwe ga nthawi zonse kapena negligible.

Kufunika ntchito kulemera yeniyeni eni luso zinthu chizindikiritso, mtima zosafunika mu dongosolo lawo kapena porosity.

Odziwika bwino njira kudziŵa chitsanzo cha golide, kachulukidwe ngale nyumba, etc. The njira zoyambirira za kuyeza yokoka yeniyeni zochokera kusamuka kwa embodiments zosiyanasiyana: kulemera kwa thupi chimaonekera ndipo, womiza m'madzi, buku ake, ndi muyezo Akuti - zida malonda. Maphunziro othandiza kwambiri ndi ntchito deta analandira mwa njira iyi, mu phunziro la zitsulo ndi kasakaniza wazitsulo awo. Childs, ndi zolemba kudziwika Molingana ndi kulemera kwa zitsulo ndi katundu bwino kuphunzira. adziwane ndi zitsanzo atsopano amenewo anapereka zinthu zambiri, koma anayamba kuphunzira kuyeza yokoka yeniyeni.

Madzi ntchito zambiri madzi, koma miyezo molondola mkulu limatipatsa bata mkulu wa magawo kunja - kutentha ndi anzawo. Nthawi zina, mwachitsanzo, mu kuphunzira Amber kwa chinyengo ntchito madzi wapadera ndi kulemera yeniyeni oposa 2 g / CC.

yokoka wokha zikuluzikulu zamakono amafotokozera mu ntchito mafakitale madzi maginito. Zabwino-palafini slurry ndi ferroporoshkom chimathandiza maginito mosavuta kulenga madzi ndi variable kulamulidwa kapena preassigned yokoka yeniyeni. Kwa ndondomeko zinthu pa patsogolo phewa la ores polymetallic ndi zipangizo zina zambiri ndi zambiri zosafunika, amene zigawo anasiyanitsidwa ndi msinkhu wa flotation kusamba mogwirizana ndi kulemekeza awo enieni. N'zotheka kuti ngati zachilengedwe miyala luso beneficiation - tsogolo labwino.