Video: Dab tsi yog qhov ntom ntawm aluminium lub voos xwmfab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov ntom yog xam siv loj muab faib los ntawm ntim. Qhov ntim ntawm a kub yog xam siv ntev lub sij hawm dav lub sij hawm qhov siab. Cov ceev ntawm aluminium yog nyob ib ncig ntawm 2.8 grams ib cubic centimeter thiab cov ceev ntawm ua npuas ncauj yog. 7 grams ib centimeter cubed.
Tsis tas li ntawd, qhov loj ntawm ib lub voos xwmfab ntawm aluminium yog dab tsi?
Ua ntej, peb yuav tsum nrhiav qhov ntim ntawm lub kub . Tam sim no, txij li peb paub qhov ntim thiab qhov ceev, peb tuaj yeem txheeb xyuas qhov pawg . Pawg Yog ' = 172,8 g. Yog li ntawd, lub pawg yog 172,8g.
Kuj Paub, dab tsi yog qhov ceev ntawm lub voos xwmfab? Kev taw qhia rau ceev ceev yog qhov loj ntawm ib yam khoom faib los ntawm nws ntim. Qhov ntom feem ntau muaj units ntawm grams ib cubic centimeter (g / cm3). Nco ntsoov, grams yog qhov loj thiab cubic centimeters yog ib lub ntim (lub ntim tib yam li 1 milliliter). los ntawm edinformatics.
Tsuas yog li ntawd, qhov ceev ntawm aluminium yog dab tsi?
2.7 g / cm³
Dab tsi yog qhov ntom ntawm aluminium per cubic centimeter?
2,699 g ib cubic cm
Pom zoo:
Dab tsi yog qhov kev sib raug zoo ntawm thaj chaw saum npoo thiab ntim ntawm lub voos xwmfab?
Rau qhov cubes me dua qhov no, thaj chaw saum npoo yog ntau dua piv rau qhov ntim ntau dua li nws nyob hauv qhov loj dua (qhov ntim ntau dua piv rau thaj chaw saum npoo). qhia meej meej tias raws li qhov loj ntawm ib yam khoom nce (tsis hloov pauv), qhov piv txwv no txo qis
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 qhov flux los ntawm ib lub ntsej muag ntawm lub voos xwmfab?
Teb thiab piav qhia: Cov hluav taws xob flux los ntawm ib sab ntawm ib lub voos xwmfab vim yog tus nqi taw tes yog & rho tawm; 32000 V ⋅ m − 32 000 V ⋅ m
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
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua