Video: Ua li cas koj thiaj nrhiav tau qhov ntom ntawm ib qho hlau tsis paub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov ntom = loj / ntim. Xav tias koj yuav tsum txheeb xyuas ib qho tsis paub hlau . Koj tuaj yeem txiav txim siab qhov loj ntawm cov hlau ntawm qhov ntsuas. Koj tuaj yeem txiav txim siab qhov ntim los ntawm kev xa cov khoom mus rau hauv ib lub tog raj kheej kawm tiav uas muaj cov ntim dej paub thiab ntsuas qhov ntim tshiab.
Ib sab ntawm qhov no, koj yuav pom qhov ntom ntawm cov hlau li cas?
Faib qhov loj los ntawm ntim rau xam tus ceev ntawm hlau . Piv txwv li, yog tias qhov hnyav yog 7.952 phaus thiab qhov ntim yog 28 cubic inches, ceev yuav yog 0.284 phaus ib cubic nti.
Ib sab saum toj no, vim li cas koj tuaj yeem siv qhov ntom ntom los txheeb xyuas cov khoom tsis paub? Cov ceev , ρ, ntawm ib yam khoom txhais tau tias yog qhov piv ntawm nws qhov hnyav rau nws qhov ntim. Qhov ceev tuaj yeem yuav pab tau nyob rau hauv txheeb xyuas cov khoom . Nws kuj yog ib qho cuab yeej yooj yim vim nws muab qhov txuas (lossis hloov pauv hloov pauv) ntawm qhov loj thiab ntim ntawm a yam khoom.
Qhov thib ob, koj ua li cas thiaj nrhiav tau qhov ntom ntawm cov kua tsis paub?
Qhov loj thiab qhov loj ntawm cov molecules hauv a ua kua thiab nyob ze npaum li cas lawv tau ntim ua ke txiav txim siab qhov ceev ntawm ua kua . Ib yam li cov khoom, cov ceev ntawm a ua kua sib npaug qhov loj ntawm cov ua kua muab faib los ntawm nws ntim; D = m/v. Cov ceev dej yog 1 gram ib cubic centimeter.
Dab tsi yog qhov ntom ntawm cov kua tsis paub?
Yog li cov qhov ntom ntom ntawm cov kua tsis paub yog 665g/l.
Pom zoo:
Dab tsi yog qhov ntom ntom ntom ntom ntom ntom ntom?
Ib daim phiaj density yog ib qho piv txwv ntawm kev faib cov lej sib txawv. Nws yuav siv ib ntsiav ceev kwv yees los qhia qhov tshwm sim ceev muaj nuj nqi ntawm lub nce mus nce los (saib ntxiv). Nws yog ib tug smoothed version ntawm lub histogram thiab yog siv nyob rau hauv tib lub tswvyim
Dab tsi yog vim li cas ntawm qhov ntom ntom ntom?
Ntawm cov kua-cua sib cuam tshuam, qhov nro ntawm qhov chaw tshwm sim los ntawm kev nyiam ntawm cov kua molecules ntau dua rau ib leeg (vim kev sib koom ua ke) dua li cov molecules hauv huab cua (vim adhesion)
Dab tsi yog qhov txawv ntawm qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom nrog cov piv txwv?
Nws ua haujlwm nyob rau hauv ob qho tib si loj thiab me me thiab tsis yog raws li cov pej xeem ceev. Ceev dependent yam yog cov uas tswj cov kev loj hlob ntawm ib tug pej xeem nyob rau ntawm nws lub ceev thaum ceev ywj siab yam yog cov uas tswj pejxeem kev loj hlob yam tsis muaj nyob rau nws cov ceev
Yuav ua li cas koj thiaj nrhiav tau qhov ntom ntawm ib yam khoom?
Kev xam qhov ntom ntom ntawm cov khoom lossis cov kua ua kom pom qhov ntim, los ntawm kev ntsuas qhov ntev ntawm cov khoom lossis siv lub thawv ntsuas rau cov kua. Muab cov khoom lossis cov khoom siv rau ntawm qhov ntsuas thiab txheeb xyuas nws qhov loj. Faib qhov loj los ntawm qhov ntim kom paub qhov ceev (p = m / v)
Lub raj mis ntom ntom siv li cas los nrhiav qhov ntom ntawm cov kua?
Qhov loj thiab qhov loj ntawm cov molecules nyob rau hauv cov kua thiab ze npaum li cas lawv tau ntim ua ke txiav txim siab qhov ntom ntawm cov kua. Ib yam li cov khoom, qhov ntom ntawm cov kua sib npaug ntawm cov kua faib los ntawm nws qhov ntim; D = m/v. Qhov ceev ntawm cov dej yog 1 gram ib cubic centimeter