Video: Qhov txawv ntawm thaj chaw saum npoo thiab thaj tsam sab nraud yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov thaj chaw sab nrauv yog cov cheeb tsam ntawm txhua sab tsis suav nrog cheeb tsam ntawm lub hauv paus. Tag nrho thaj chaw saum npoo ntawm tej khoom yog qhov sum ntawm thaj chaw ntawm tag nrho cov ntsej muag ntawm cov khoom khov.
Yog li ntawd, puas yog thaj chaw sab nraud tib yam li thaj chaw saum npoo?
Lesson Summary Lub thaj chaw sab nrauv yog cov thaj chaw saum npoo ntawm ob sab ntawm daim duab peb sab. Txhua daim duab yuav muaj lub hauv paus sib txawv, tab sis cov thaj chaw sab nrauv isfound lub ib yam txoj kev.
Qhov thib ob, qhov sib txawv ntawm thaj chaw thiab thaj chaw saum npoo yog dab tsi? 1. Lub sij hawm cheeb tsam yog ib lo lus dav dav uas qhia qhov ntsuas qhov loj ntawm a nto , thaum thaj chaw saum npoo yog tsim nyog siv los qhia qhov ntsuas ntawm qhov raug nto ntawm ib yam khoom khoom. 2. Thaj chaw yog rau 2-dimensional tiaj tus, thaum thaj chaw saum npoo isfor 3-dimensional solids.
Tsis tas li ntawd, thaj chaw sab nrauv yog dab tsi?
Cov sab nrauv ntawm ib yam khoom yog qhov cheeb tsam ntawm txhua sab ntawm cov khoom, tsis suav nrog cheeb tsam ntawm nws lub hauv paus thiab sab saum toj. Rau lub kub, lub lateral qhov chaw yuav yog cheeb tsam ntawm plaub sab. Rau lub tog raj kheej txoj cai ntawm lub vojvoog r thiab qhov siab h, lub thaj tsam sab nraud yog cov cheeb tsam ntawm sab nto ntawm lub tog raj kheej: A = 2πrh.
Dab tsi yog qhov txawv ntawm thaj chaw saum npoo thiab ntim?
Qhov chaw saum npoo yog qhov sum ntawm thaj chaw ntawm tag nrho cov ntsej muag ntawm lub cev muaj zog. Nws yog ntsuas nyob rau hauv square units. Ntim yog tus naj npawb ntawm cubic units uas tsim ib tug solidfigure.
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 hloov pauv kev sib raug zoo ntawm ntim thiab thaj chaw saum npoo raws li qhov khoom loj dua?
Raws li lub voos xwmfab loj zuj zus los yog lub xov tooj ntawm tes tau loj dua, ces thaj tsam ntawm qhov ntim rau qhov sib piv - SA: V piv txo. Thaum ib yam khoom / cell me me, nws muaj thaj tsam loj rau qhov ntim piv, thaum lub khoom loj / cell muaj thaj tsam me me rau qhov ntim piv
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Lub organelle twg ua haujlwm raws li qhov chaw xa ntawv ntawm lub xov tooj ntawm tes txheeb cov proteins thiab xa lawv mus rau lawv qhov chaw xav tau sab hauv lossis sab nraud ntawm tes?
Golgi Hais txog qhov no, dab tsi organelle yog lub luag haujlwm rau kev thauj mus los? endoplasmic reticulum (ER Qhov thib ob, cov proteins txav mus los ntawm lub cell li cas? Cov proteins txav mus los endomembrane system thiab raug xa tawm los ntawm lub ntsej muag trans ntawm Golgi apparatus nyob rau hauv thauj vesicles uas txav mus los cytoplasm thiab tom qab ntawd fuse nrog plasma membrane tso tawm protein ntau mus rau sab nraum lub cell .
Dab tsi yog qhov kev sib raug zoo ntawm thaj chaw saum npoo thiab ntim ntawm ib lub sphere?
Rau ib tug kheej kheej, qhov chaw saum npoo yog S = 4 * Pi * R * R, qhov R yog lub vojvoog ntawm tus kheej thiab Pi yog 3.1415 Qhov ntim ntawm ib puag ncig yog V = 4 * Pi * R * R * R / 3. Yog li rau ib tug kheej kheej, qhov sib piv ntawm thaj chaw rau ntim yog muab los ntawm: S / V = 3 / R