Dab tsi yog ib feem ntawm kab thiab muaj ib qho kawg?

Video: Dab tsi yog ib feem ntawm kab thiab muaj ib qho kawg?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Raj: A ib feem ntawm kab uas muaj ib qhov kawg thiab txuas ntxiv yam tsis muaj qhov kawg ib kev taw qhia.

Khaws qhov no hauv kev xav, dab tsi yog ib feem ntawm kab thiab muaj ib qho kawg thiab txuas ntxiv mus rau ib qho kev coj?

Ray - Ib ray is ib feem ntawm kab uas muaj ib qhov kawg . Nws txuas ntxiv mus rau ib qho kev taw qhia tsis xaus.

Tsis tas li ntawd, dab tsi ncaj nraim yog ib feem ntawm kab thiab muaj 2 qhov kawg? A kab ntu muaj ob cov ntsiab lus kawg . A kab segment yog a txoj kab ncaj nraim uas txuas ob lub ntsiab lus.

Hais txog qhov no, dab tsi yog ib feem ntawm kab thiab muaj ib qho kawg?

Ib ray yog a ib feem ntawm kab uas muaj ib qhov kawg thiab mus rau infinitely nyob rau hauv xwb ib kev taw qhia.

Dab tsi yog ib feem ntawm kab?

Hauv geometry, a kab segment yog a ib feem ntawm a kab uas yog bounded los ntawm ob lub ntsiab lus kawg, thiab muaj txhua qhov taw tes ntawm qhov kab nruab nrab ntawm nws qhov kawg. Ib kaw kab ntu suav nrog ob qho kawg, thaum qhib kab ntu tsis suav ob qhov kawg; ib nrab qhib kab ntu suav nrog raws nraim ib qho ntawm cov ntsiab lus kawg.

Pom zoo:

Dab tsi yog ib feem ntawm kab nrog ob qhov kawg?

Ib kab ntu yog ib feem ntawm kab uas muaj ob lub ntsiab lus kawg. Ib kab ntu nruab nrab yog ib qho kev sau ntawm cov ntsiab lus hauv cov ntsiab lus kawg thiab nws muaj npe los ntawm nws qhov kawg. Ib txoj kab hluav taws xob yog ib txoj kab uas tsuas muaj ib qho kawg txhais thiab ib sab uas txuas mus rau qhov kawg ntawm qhov kawg

Dab tsi yog thawj kauj ruam ntawm kev tsim ib qho perpendicular los ntawm ib qho taw tes mus rau kab?

Txuas tus taw tes rau qhov taw tes uas cov arcs sib tshuam. Siv ib tug straightedge los xyuas kom meej cov kab yog ncaj. Txoj kab koj kos yog perpendicular rau thawj kab, los ntawm qhov muab taw tes rau ntawm kab

Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?

Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug

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