Thaum ob lub nrawm ntxiv qhov kev tshaj tawm tshwm sim?

Cov txheej txheem:

Thaum ob lub nrawm ntxiv qhov kev tshaj tawm tshwm sim?
Thaum ob lub nrawm ntxiv qhov kev tshaj tawm tshwm sim?
Anonim

Yog ob lossis ntau dua vectors ntxiv, ces qhov tshwm sim yog qhov tshwm sim nrawm. Yog tias muaj ob lossis ntau lub zog vectors ntxiv, ces qhov tshwm sim yog lub zog tshwm sim.

Yuav ua li cas koj pom qhov tshwm sim ntawm ob lub nrawm?

Sib faib tag nrho lub zog los ntawm qhov sib npaug ntawm cov pawg yog tias ob qho khoom sib txuas ua ke tom qab cuam tshuam. Qhov no yuav ua rau koj pom qhov nrawm ntawm ob yam khoom. Hauv qhov piv txwv saum toj no, peb yuav muab 50 thiab faib los ntawm cov lej ntawm pawg, uas yog 10, tau txais txiaj ntsig ntawm 5 meters ib ob.

Vim li cas yog qhov nrawm?

Qhov tshwm sim nrawm ntawm ib qho khoom yog qhov suav ntawm nws tus kheej vector nrawm. ■ Cov lej ntawm vector quab yuam ntawm ib yam khoom yog sib npaug rau cov khoom lag luam ntawm cov khoom loj thiab nws cov vector nrawm.

Yuav ua li cas 2 lub nrawm sib koom ua ke?

Yuav ua li cas ob lossis ntau qhov kev sib tw ua ke? Ob los yog ntau tshaj nrawm ntxiv los ntawm vector ntxiv. … Koj suav acceleration rau txoj kab ncaj nraim los ntawm kev faib qhov kev hloov pauv ntawm qhov nrawm los ntawm tag nrho lub sijhawm.

Thaum koj muab ob lub nrawm uas nyob rau tib qho kev taw qhia koj ua dab tsi kom pom qhov nrawm nrawm?

Thaum muab ob lub nrawm uas mus rau tib qho kev taw qhia, ntxiv rautxhawm rau nrhiav qhov nrawm nrawm. Thaum koj muab ob lub nrawm uas nyob rau hauv cov lus qhia sib txawv, rho tawmme tshaj tawm mus nrhiav qhov tshwm sim tshaj tawm. Qhov tshwm sim tau tshaj tawm yog nyob rau tib qho kev taw qhia ntawm qhov nrawm dua.

Pom zoo:

Nthuav cov khoom
Thaum twg tus neeg raug foob tuaj yeem foob tsab ntawv tso cai?
Nyeem ntxiv

Thaum twg tus neeg raug foob tuaj yeem foob tsab ntawv tso cai?

Ib tsab ntawv tso tawm tuaj yeem foob txhua lub sijhawm. Lawv feem ntau raug foob los ntawm cov neeg raug foob thaum ntxov ntawm kev foob, ua ntej lawv tau ua cov lus teb. Feem ntau ib tsab ntawv tso cai tawm yog liam tias qhov kev thov yuav tsum tsis txhob mus vim qhov teeb meem tsis cuam tshuam txog qhov tseeb.

Lub plab yog dab tsi?
Nyeem ntxiv

Lub plab yog dab tsi?

Galls los yog cecidia yog ib hom o ntawm cov ntaub so ntswg sab nraud ntawm cov nroj tsuag, fungi, lossis tsiaj. Cog galls yog qhov txawv txav ntawm cov ntaub so ntswg, zoo ib yam li cov qog nqaij hlav los yog cov kab mob hauv cov tsiaj. Lawv tuaj yeem tshwm sim los ntawm ntau yam kab mob, los ntawm cov kab mob, cov kab mob thiab cov kab mob, mus rau lwm cov nroj tsuag, kab thiab mites.

Thaum Kiswahili tau ua ib hom lus hauv tebchaws?
Nyeem ntxiv

Thaum Kiswahili tau ua ib hom lus hauv tebchaws?

Ntawm Lub Xya Hli 4, 1974 Thawj Tswj Hwm Jomo Kenyatta tshaj tawm Kiswahili ib hom lus ntawm Parliament, hnub tom qab, Parliament raug coj los ua yeeb yam raws li MPs sim ua kev koom tes hauv hom lus. Thaum Kiswahili tau ua hom lus hauv tebchaws Tanzania?