Video: Koj puas tuaj yeem muab lub voos xwmfab hauv paus los ntawm lub hauv paus square?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Khoom Taw Qhia rau Txoj Cai Fais Fab yog qhov tseem ceeb vim koj ua tau siv nws rau ntau radical qhia. Nco ntsoov tias cov keeb kwm yog tib yam- koj ua tau ua ke cov hauv paus plaub hau nrog cov hauv paus plaub hau , los yog kub roots nrog kub roots , piv txwv. Tab sis koj ua tau 't ntau a square cag thiab a kub root siv txoj cai no.
Hauv qhov no, yuav ua li cas koj muab cov feem ntau nrog cov hauv paus square?
Kauj ruam 1: Ntau tus lej thiab tus denominator los ntawm ib qho radical uas yuav tshem tawm cov radical hauv tus denominator. Yog hais tias lub radical nyob rau hauv lub denominator yog a square cag , ces koj ntau los ntawm a square cag uas yuav ua rau koj zoo meej square nyob rau hauv lub radical thaum multiplied los ntawm tus denominator.
Qhov thib ob, lub hauv paus square ntawm ib squared yog dab tsi? Txhua tus lej tsis tseeb x muaj qhov tshwj xeeb tsis zoo square cag , hu ua tus thawj xib fwb square cag , uas yog denoted los ntawm √x, qhov twg lub cim √ hu ua radical kos npe los yog radix. Piv txwv li, tus thawj xib fwb square cag ntawm 9 yog 3, uas yog denoted los ntawm √9 = 3, vim 32 = 3 ⋅ 3 = 9 thiab 3 yog nonnegative.
Kuj paub yog, koj puas tuaj yeem muab cov hauv paus square nrog tag nrho cov lej?
Koj tuaj yeem muab cov hauv paus square , ib hom radical qhia, ib yam li koj muaj peev xwm muab tag nrho cov lej . Qhov trickiest ib feem ntawm multiplying square cag yog yooj yim kev qhia kom ncav cuag koj cov lus teb kawg, tab sis txawm tias cov kauj ruam no yooj yim yog koj paub koj cov squares zoo meej.
2 x lub sij hawm 2 x yog dab tsi?
Teb thiab piav qhia: 2x ua 2x yog 4x2. Hauv kev nthuav qhia xws li 2x ib , 2 yog hu ua coefficient thiab x yog qhov sib txawv.
Pom zoo:
Dab tsi yog lub voos xwmfab hauv paus ntawm 40 hauv daim ntawv radical?
Qhov tseem ceeb ntawm 40 uas peb tuaj yeem nqa lub voos xwmfab ntawm lub hauv paus yog 8. Peb tuaj yeem sau 40 li (8) (5) thiab tom qab ntawd siv cov khoom siv txoj cai ntawm radicals cais 2 tus lej. Peb tuaj yeem nqa lub voos xwmfab ntawm 8, uas yog 2, tab sis peb yuav tsum tau tawm ntawm 5 hauv qab lub voos xwmfab
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
Yuav ua li cas koj pom qhov ntim ntawm lub voos xwmfab nrog lub pyramid saum toj?
Txhawm rau nrhiav qhov ntim ntawm lub voos xwmfab no, muab lub hauv paus lub sijhawm ntawm qhov dav lub sijhawm qhov siab. Txhawm rau nrhiav qhov ntim ntawm lub pyramid, siv thaj tsam ntawm lub hauv paus, egin{align*} Khoov{align*} thiab muab nws lub sij hawm qhov siab thiab ces muab nws los ntawm egin{align*}frac{1}{3}end{ align*}
Koj tuaj yeem kwv yees tus nqi ntawm lub hauv paus square?
Txhawm rau kwv yees tus nqi ntawm cov square root ntawm tus lej, nrhiav cov squares zoo meej saum toj thiab hauv qab tus lej. Piv txwv li, kwv yees sqrt(6), nco ntsoov tias 6 yog nyob nruab nrab ntawm lub zoo meej squares 4 thiab 9. Sqrt(4) = 2, thiab sqrt(9) = 3
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