Buoyancy (/ˈbɔɪənsi, ˈbuːjənsi/), los yog upthrust, yog ib zog nce siab los ntawm cov kua dej uas tawm tsam qhov hnyav ntawm ib feem lossis tag nrho cov khoom immersed. Nyob rau hauv ib kem ntawm cov kua, siab nce nrog qhov tob raws li qhov hnyav ntawm cov kua dej ntau dhau.
Yuav ua li cas yog upthrust tseem hu ua?
Upthrust is also known as the buoyant force. Nws yog lub zog nce siab ua haujlwm ntawm lub cev thaum nws yog ib nrab lossis tag nrho rau hauv cov kua. Lub SI unit ntawm upthrust yog Newton (N) vim nws yog ib tug quab yuam.
Puas yog lub zog booyant thiab viscous force tib yam?
Viscosity tsuas yog txhais tau tias yog qhov ua haujlwm ntawm cov kua lossis roj ntws. … Viscosity yog txawv rau buoyancy nyob rau hauv uas nws piav txog lub zog nyob rau hauv ib yam khoom, es tsis yog ib tug upward quab yuam exerted los ntawm ib yam khoom rau lwm yam khoom.
Yuav ua li cas lub zog yog buoyancy?
booyant force is the upward force a fluid exerts on an object. Archimedes 'Principle yog qhov tseeb hais tias lub zog buoyant yog sib npaug ntawm qhov hnyav ntawm cov kua dej uas hloov chaw.
Puas upthrust ua tej yam ntab?
Ib yam khoom uas tsawg dua li cov kua uas nws muab tso rau hauv, hnyav dua li cov kua dej sib npaug rau nws lub ntim. Yog li ntawd, cov khoom tsuas tuaj yeem hloov pauv qhov ntim ntawm cov kua dej sib npaug rau nws qhov hnyav ua ntej nws tuaj yeem nkag mus rau hauv dej - yog li nws floats vim tias cov khoom hnyav sib npaug rau qhov upthrust.
