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Video: Dab tsi yog qhov tseem ceeb ntawm lub hnub ci system?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Hnub Ci System muaj lub cev elliptical lossis qe, thiab yog ib feem ntawm lub galaxy hu ua Milky Way. Sab hauv Hnub Ci System muaj lub hnub, Mercury, Venus, ntiaj teb thiab Mars. Lub ntiaj teb ntawm sab nrauv Hnub Ci System yog Jupiter, Saturn, Uranus, Neptune thiab Pluto.
Ib yam li ntawd, tej zaum koj yuav nug, 12 qhov tseem ceeb ntawm lub hnub ci yog dab tsi?
Los ntawm sab hauv mus rau sab nraud peb muaj
- lub hnub.
- Mercury.
- Venus.
- Lub ntiaj teb.
- Mars.
- Lub asteroid siv.
- Jupiter.
- Uranus.
Dab tsi yog cov khoom tseem ceeb ntawm peb lub hnub ci thiab lawv ua li cas? Kev npaj ntawm cov Hnub Ci System [edit] Sab hauv qhov system yog tsim los ntawm lub hnub (the loj tshaj plaws mass), lub teb chaws ntiaj chaw (pob zeb thiab ze rau lub hnub) thiab lawv moons (hnub yog kos rau ntiaj chaw vim lawv gravitational force), ze-orbiting asteroids thiab comets, thiab cov lub ntsiab asteroid siv.
Tsis tas li ntawd, dab tsi yog qhov tseem ceeb ntawm lub hnub ci system?
Cov Hnub Ci System . Peb hnub ci system Nws muaj lub hnub qub nruab nrab peb hu ua Lub Hnub, cov ntiaj chaw Mercury, Venus, Ntiaj Teb, Mars, Jupiter, Saturn, Uranus, Neptune, thiab Pluto. Nws suav nrog: cov satellites ntawm cov ntiaj chaw; ntau comets, asteroids, thiab meteoroids; thiab interplanetary nruab nrab.
Dab tsi yog qhov tseem ceeb tshaj plaws ntawm lub hnub ci?
[1] Lub Hnub: Lub hnub muaj ntau dua 99% ntawm tag nrho cov huab hwm coj ntawm lub hnub ci system , gravitationally dominates lub hnub ci system thiab tuaj yeem pom raws li qhov tseem ceeb tshaj plaws khoom. [2] Lub Ntiaj Teb: Xwb, Lub Ntiaj Teb tuaj yeem pom raws li tseem ceeb tshaj plaws khoom vim nws yog tib yam khoom uas hosts lub neej.
Pom zoo:
Dab tsi yog qhov txiaj ntsig tseem ceeb ntawm kev taw qhia ntawm tes los ntawm kev sib cuag lub cev ncaj qha?
Kev taw qhia kuj tshwm sim ntawm cov hlwb uas yog kev sib cuag ntawm lub cev. Kev sib cuam tshuam ntawm cov proteins ntawm qhov chaw ntawm cov hlwb tuaj yeem ua rau muaj kev hloov pauv hauv cov cwj pwm ntawm tes. Piv txwv li, cov proteins nyob rau saum npoo ntawm T-cells thiab antigen nthuav tawm cov hlwb sib cuam tshuam los ua kom muaj kev taw qhia hauv T-cells
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Cov xwm txheej no tuaj yeem muab faib ua ob qhov tseem ceeb: interphase (hauv nruab nrab ntawm kev sib faib theem ua pawg G1 theem, S theem, G2 theem), thaum lub xov tooj ntawm tes tsim thiab ua nrog nws cov haujlwm metabolic; mitotic theem (M mitosis), thaum lub sij hawm lub cell yog replicating nws tus kheej
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