Qhov hnyav ntawm cov kua dej txav mus ncaj qha ncaj qha rau qhov ntim ntawm cov kua dej txav chaw (yog tias cov dej nyob ib puag ncig yog qhov sib txawv). … Yog li ntawd, ntawm cov khoom uas submerged kiag li uas muaj vaj huam sib luag, cov khoom nrog ntau duamuaj ntau dua buoyancy. Qhov no tseem hu ua upthrust.
Puas buoyancy nyob ntawm ntim?
Tab sis lub zog buoyant tsis nyob ntawm qhov tob. Nws tsuas yog nyob ntawm ntim ntawm cov kua hloov pauv V f V_f VfV, pib subscript, f, kawg subscript, qhov ntom ntawm cov kua ρ, thiab qhov nrawm vim lub ntiajteb txawj nqus g.
Yuav ntim dab tsi hauv buoyancy?
Yog tias ib qho khoom puas tag nrho, qhov ntim ntawm cov kua hloov pauv yog sib npaug rau qhov ntim ntawm cov khoom. Lub zog buoyancy ntawm cov pa kub cua, dirigibles thiab lwm yam khoom tuaj yeem suav tau los ntawm kev xav tias lawv nyob hauv huab cua tag nrho.
Yuav ua li cas koj pom lub zog buoyant nrog ntim?
Nyob hauv cov ntsiab lus dav dav, lub zog buoyancy no tuaj yeem suav nrog qhov sib npaug Fb=Vs × D × g , qhov twg Fb yog lub zog buoyancy uas ua rau cov khoom, Vs yog lub ntim ntim ntawm cov khoom, D yog qhov Qhov ntom ntawm cov kua dej qhov khoom yog submerged nyob rau hauv, thiab g yog lub zog ntawm lub ntiajteb txawj nqus.
Koj suav qhov ntim li cas?
Thaum tus qauv yooj yim rau thaj tsam ntawm cov duab plaub yog qhov ntev × dav, cov qauv yooj yim rau ntim yog length × dav ×qhov siab.
