Yuav ua li cas koj pom qhov tshwm sim vector hauv physics?

Video: Yuav ua li cas koj pom qhov tshwm sim vector hauv physics?

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

Cov tshwm sim yog cov vector sum ntawm ob los yog ntau tshaj cov duab . Nws yog qhov tshwm sim ntawm kev ntxiv ob lossis ntau dua cov duab ua ke. Yog hloov chaw cov duab A, B, thiab C ntxiv ua ke, qhov tshwm sim yuav yog vector R. Raws li qhia hauv daim duab, vector R tuaj yeem txiav txim siab los ntawm kev siv qhov raug kos, ntsuas, vector daim duab ntxiv.

Ib yam li ntawd, koj ua li cas kos ib qho vector?

Kos tus tshwm sim los ntawm tus Tsov tus tw thawj vector mus rau lub taub hau kawg vector . Sau npe rau qhov no vector raws li Qhov tshwm sim los yog yooj yim R. Siv tus pas ntsuas, ntsuas qhov ntev ntawm tus tshwm sim thiab txiav txim siab nws qhov loj los ntawm kev hloov mus rau cov units tiag tiag siv qhov ntsuas (4.4 cm x 20 m / 1 cm = 88 m).

Kuj Paub, dab tsi yog tus qauv rau lub zog tshwm sim? Feem ntau, yog → F1, → F2, → F3 zog ua rau lub cev, lawv ua zog → Fis muab los ntawm: → F = → F1 + → F2 + → F3. Nyob ntawm tus naj npawb zog acting, ua tshwm sim tuaj yeem tau txais geometrically los ntawm kev siv txoj cai daim duab peb sab, txoj cai parallelogram lossis polygon txoj cai ntawm vector ntxiv.

Ib yam li ntawd, tus qauv ntawm kev tshem tawm yog dab tsi?

Taw qhia rau lub Kev khiav tawm thiab Acceleration Equation Nws nyeem: Kev khiav tawm sib npaug qhov qub tshaj tawm los ntawm lub sij hawm ntxiv rau ib nrab ntawm qhov acceleration multiplied los ntawm lub square ntawm lub sij hawm. Ntawm no yog ib qho piv txwv teeb meem thiab nws txoj kev daws teeb meem uas qhia txog kev siv qhov sib npaug: Ib qho khoom txav nrog qhov nrawm ntawm 5.0 m / s.

Dab tsi yog qhov tsis zoo vector?

A tsis zoo vector yog a vector uas cov ntsiab lus nyob rau hauv cov kev taw qhia opposite mus rau lub reference zoo coj. A tsis zoo vector yog a vector uas muaj qhov opposite direction mus rau lub reference zoo coj. Zoo li scalers, cov duab tuaj yeem muab ntxiv thiab rho tawm.

Pom zoo:

Qhov twg tshwm sim thawj lub teeb nyob ntawm qhov tshwm sim lossis lub teeb ywj pheej?

Lub Teeb-Dependent thiab Lub Teeb-Independent Reactions. Cov tshuaj tiv thaiv lub teeb, lossis cov tshuaj tiv thaiv lub teeb-dependent, yog thawj zaug. Peb hu lawv ob leeg thiab ob lub npe. Nyob rau hauv lub teeb-dependent tshwm sim ntawm photosynthesis, lub zog ntawm lub teeb propels lub electrons los ntawm ib tug photosystem mus rau lub high-zog lub xeev

Tus qauv yuav pab nrhiav qhov tshwm sim ntawm qhov kev tshwm sim sib xyaw li cas?

Lub ntsiab lus ntawm Qhov Muaj Peev Xwm Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej yog ib qho uas muaj ntau tshaj li qhov ua tau. Kev txiav txim siab qhov yuav tshwm sim ntawm qhov kev tshwm sim sib xyaw suav nrog kev nrhiav cov lej ntawm qhov tshwm sim ntawm tus kheej cov xwm txheej thiab, yog tias tsim nyog, tshem tawm qhov muaj feem sib tshooj

Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?

Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo

Yuav ua li cas koj pom qhov tshwm sim ntawm qhov tshwm sim tsawg kawg ib zaug?

Txhawm rau xam qhov tshwm sim ntawm qhov tshwm sim tshwm sim tsawg kawg ib zaug, nws yuav yog qhov sib ntxiv ntawm qhov xwm txheej tsis tshwm sim. Qhov no txhais tau hais tias qhov tshwm sim ntawm qhov tshwm sim yeej tsis tshwm sim thiab qhov tshwm sim ntawm qhov tshwm sim tsawg kawg ib zaug yuav sib npaug, lossis 100% txoj hauv kev