Ukuminyana kanye namandla adonsela phansi athile

Isihloko mayelana nobuningi kanye nobukhulu obuthile

Ubuningi

Isici esibalulekile sento ukuminyana. Ubuningi buyisilinganiso sobuningi nobuningi. Kubhalwe ngokwezibalo:

ρ = m / V

U-ρ (rho) uhlamvu lwesiGreki oluvame ukusetshenziswa ukuveza ubuningi, u-m uyisisindo kanti u-V uyivolumu. Ubuningi boketshezi olufana luhlukile kubuningi bento eqinile efanayo. Insimbi, isibonelo, inobuningi obufanayo engxenyeni ngayinye. Emkhathini woMhlaba, lapho umoya uphakeme ebusweni boMhlaba, ubuningi bawo buncane, kanti emanzini olwandle, lapho amanzi olwandle ejula, ubuningi bawo bukhulu. Ubuningi boketshezi olufana ncamashi bungancika ezintweni zemvelo ezifana nokushisa kanye nokucindezela.

Iyunithi Yesistimu Yamazwe Ngamazwe yobuningi ingamakhilogremu ngemitha eyi-cubic (kg/m2)³). Kumayunithi e-CGS, iyunithi yobuningi besisindo ivezwa ngamagremu ngesentimitha ngayinye (gr/cm³Okulandelayo idatha yobuningi bezinto eziningana.

Ubuningi bezinto ezishiwo kuthebula elingenhla buwubuningi bezinto eziku-0 ^oC and ingcindezi ye-atm eyi-1 (umkhathi, i-atm = iyunithi yengcindezi).

Ukuvuthwa okucacile

Amandla adonsela phansi athile yisilinganiso sobuningi bento ethile nobuningi bamanzi. Amandla adonsela phansi athile ento ethile angatholakala ngokuhlukanisa ubuningi ngo-10³ kg / m³ (10³ kg / m³ = ukuminyana kwamanzi). Amandla adonsela phansi athile awanazo izilinganiso.

Uma ubukhulu bento buncane kunobukhulu bamanzi, khona-ke into izontanta. Ubukhulu obuthile bento entantayo bungaphansi kuka-1. Ngokuphambene nalokho, uma ubukhulu bento buphakeme kunobukhulu bamanzi, ubukhulu obuthile buphakeme kuno-1. Kulokhu, into izocwila.