Ukusheshisa gravity

Ukuphathwa imiqondo ukusheshisa okudonsa zivame ukuhambisana izibonelo ucwaningo zokufunda, lapho izinto ezihlukahlukene ngesisindo (ikakhulukazi, ipeni zemali) behliswa kusukela lobulinganako. Kubonakala ngokuphelele kucace ukuthi izinto kuwele phansi ngesikhathi ezahlukene zinkathi (ngepeni ngakho ngokuvamile Ngeke kuwele). Ngenxa yalokho, i- ukuwa zemizimba lungekho ngaphansi umthetho oqondile eyodwa kuphela. Kodwa, kubonakala sengathi kuyabonakala manje kuphela, esikhathini esithile esidlule, kwakudingeka bafeze ucwaningo ukuqinisekisa lokhu. Abacwaningi kunengqondo ukucabanga ukuthi ekuqaleni ekwindla ka imizimba eqhuba amandla esithinta ukunyakaza kwabo futhi, ngenxa yalokho, ngesilinganiso ukunyakaza mpo. Lokhu kwalandelwa ucwaningo okungenani abadumile nge ingilazi amashubhu kubekwe phakathi uhlamvu ipeni (ukuhlanzeka ukuhlola). umoya waba akhishwa amashubhu, ngemva bekene uvalwe ixhunyiwe. Yayiyini ukumangala abacwaningi, futhi lapho ipeni zemali, naphezu izinsimbi ngokusobala ezahlukene iwe ngezinga elifanayo.

Lesi senzakalo saba isisekelo hhayi nje ngobe kutawutfutfukisa ukudalwa nomqondo ukusheshisa okudonsa (USP), kodwa futhi usikisela ukuthi leyo mahhala ukuwa (isb falling umzimba, okuyinto ayithinteki yimaphi amandla ephikisayo) kungenzeka kuphela benganelisekile. Nokho, emoyeni, ngubani lo mthombo yokumelana, yonke imigwamanda ukuhambisa ne ukusheshisa.

Ngakho lo mqondo ukusheshisa adonsela phansi, ukuthola le ncazelo elandelayo:

• emizimbeni ewa ukuphumula bedle amandla Luhambo Zomhlaba.

Lo mqondo waklonyeliswa incwadi LamaGreki zamagama g (PVCs).

Ngesisekelo lokhu kucwaninga, kwaba sobala ukuthi USP ncamashi sici Earth, njengoba sazi ukuthi iplanethi yethu ungamandla esizoheha kwamanzi zonke izidumbu. Nokho, kwaba khona omunye umbuzo: kanjani ukulinganisa lesi silinganiso nalokho zilingana.

Isixazululo yombuzo wokuqala etholakele kunalokho ngokushesha: Ososayensi nge isikhundla izithombe ezikhethekile elimisiwe umzimba ngesikhathi kuwa in nasemkhathini ongenawo umoya isikhathi at ezahlukene zinkathi. Kwatholakala into ezithakazelisayo: zonke izidumbu endaweni inikezwe Zomhlaba iwe ne ukusheshisa esifanayo, Nokho, okuyinto, eziningana ezahlukene kuye ngokuthi indawo ethize emhlabeni. Ukuphakama kuyiphi umzimba ziqale ukunyakaza, akunandaba: kungenzeka 10, 100 noma 200 amamitha.

Found out: ukusheshisa mahhala ukuwa eMhlabeni cishe 9.8 N / kg. Eqinisweni okufanayo, lesi silinganiso zingahle uhla kusuka 9,78 N / kg 9,83 N / kg. Lo mehluko wenza (siqala elincane amehlo ongelutho) uchaza indlela ukuma Umhlaba (engesiyo ncamashi uyindilinga, kodwa isicaba-pole), kanye nsuku zonke ukujikeleza Umhlaba uzungeza ilanga. Ngokuvamile, nenani isilinganiso ibala kuthathwe - 9.8 N / kg izinombolo ezinkulu - babanjwa-10 N / kg.

g = 9,8 N / kg

Against isizinda idatha ikhombisa ukuthi ukushesha ngenxa adonsela phansi kwamanye amaplanethi kuhlukile yalo Emhlabeni. Ososayensi wafinyelela esiphethweni ukuthi kungenziwa esashiwo fomula elandelayo:

g = G x M iplanethi / (R iplanethi) (2)

Ngamagama alula: G (njalo okudonsa (6,67 • 10 (-11) m2 / s2 ∙ kg)) iyanda yi M - mass iplanethi-ehlukaniswa R - iplanethi engaba yisikwele. Ngokwesibonelo, singathola ukusheshisa gravity on the Moon. Ukwazi ukuthi isisindo salo sikhulu elilingana 7.3477 * 10 (22) kg futhi ogama engaba - 1737,10 km, sithola ukuthi USP = 1.62 N / kg. Njengoba kuboniswe, yokusheshisa amaplanethi ezimbili ezihluke kakhulu kulezo nomunye. Ikakhulukazi, izwe sekuyahwalala izikhathi 6 ngaphezulu! Uma sikubeka kalula, inyanga udonsa izinto phezu, ne ibutho izikhathi ezingaphansi kwezingu-6 kunomhlaba. Yingakho osomkhathi on enyangeni, okuyinto sibona ku-TV, njenge-sekulula. Empeleni, ulahlekelwe isisindo (hhayi mass!). Imiphumela iba yinhlanganisela yokukhandleka imiphumela ejabulisayo kufana nokwehla elingamamitha ambalwa, umuzwa ezindizayo futhi yathuthuka eside.