Video: Yuav ua li cas koj nrhiav tau lub zog siv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib Formula ntawm quab yuam
Raws li ib kab lus, "Lub net siv zog rau theobject sib npaug qhov loj ntawm cov khoom sib npaug los ntawm tus nqi ntawm nws acceleration. " zog ua yeeb yam ntawm cov ncaws pob ballis sib npaug rau qhov loj ntawm lub pob ncaws pob uas tau muab los ntawm nws qhov kev hloov pauv ntawm txhua thib ob (nws acceleration).
Tsis tas li ntawd nug, dab tsi yog tus qauv rau siv quab yuam?
Force Formula Cov qauv rau zog hais tias zog yog sib npaug rau huab hwm coj multiplied by acceleration. Yog li, yog tias koj paub qhov loj thiab acceleration, cia li muab lawv ua ke thiab tam sim no koj paub qhov zog ! Cov units rau acceleration yog meters ib ob squared (m / s2), thiab units rau hnyav yog kilograms (kg).
Ib sab saum toj, yog rub lub zog siv? Applied Force . Feem ntau, thaum koj xav txog ib zog , koj tab tom xav txog ib siv zog , uas yog kev sib cuam tshuam ntawm ib yam khoom rau lwm tus uas ua rau lub thib ob ua kom nrawm lossis hloov nrawm lossis kev taw qhia. Cov zog tuaj yeem yog lub zog, rub , los yog luag. Tus kwv willaccelerate ntev li ntev tau zog yog ua siv.
Qhov thib ob, qhov piv txwv ntawm kev siv dag zog yog dab tsi?
Ib siv zog yog a zog uas yog siv rau ib yam khoom los ntawm ib tug neeg los yog lwm yam khoom. Yog hais tias aperson thawb lub rooj hla chav tsev, ces muaj ib qho siv zog ua raws li qhov khoom. Qee lub sij hawm, ib txwm muaj zog yog exerted horizontally ntawm ob yam khoom uas sib cuag nrog ib leeg.
Ib co piv txwv ntawm lub zog yog dab tsi?
Piv txwv ntawm Forces Hauv qhov xwm txheej, qhov tseem ceeb zog yog lub ntiajteb txawj nqus, tsis muaj zog nuclear zog , muaj zog nuclear zog , electromagnetic zog , thiab residual zog . Lub zog zog yog dab tsi tuav protons thiab neutrons ua ke hauv theatomic nucleus.
Pom zoo:
Yuav ua li cas koj xam lub zog siv zog thiab nyob deb?
Txij li qhov kev siv zog yog lub zog ntawm ib cheeb tsam, yog tias koj faib lub zog ntawm qhov chaw los ntawm thaj tsam ntawm tus kheej, koj yuav suav qhov kev siv ntawm qhov deb ntawm r los ntawm qhov chaw. Hloov cov qauv no ua rau koj xam lub zog ntawm qhov chaw: P = 4πr2I
Yuav ua li cas koj nrhiav tau lub subSet ntawm ib lub teeb?
Number of Subsets ntawm ib tug muab Set: Yog hais tias ib tug set muaj 'n' ntsiab, ces tus naj npawb ntawm subsets ntawm lub teeb yog 22. Yog hais tias ib tug set muaj 'n' ntsiab, ces tus naj npawb ntawm subsets tsim nyog ntawm lub teeb yog 2n - 1 ⇒ Tus naj npawb ntawm cov subsets ntawm A yog 3 = 22 - 1 = 4 - 1
Henri Becquerel nrhiav tau dab tsi uas ua rau nws tau txais 1903 Nobel nqi zog Nws nrhiav tau dab tsi txog lub caij uranium?
Teb: Henri Becquerel tau txais ib nrab ntawm qhov khoom plig rau nws qhov kev tshawb pom ntawm cov hluav taws xob tsis zoo. Teb: Marie Curie tau kawm txog cov hluav taws xob ntawm tag nrho cov tebchaw uas muaj cov xov tooj cua paub, suav nrog uranium thiab thorium, uas nws tom qab pom kuj tseem muaj xov tooj cua
Dab tsi yog qhov txawv ntawm lub zog siv zog thiab lub zog thauj khoom?
Raws li nrog cov dav hlau inclined, cov khoom yuav tsum tau txav mus los yog lub zog muaj zog los yog thauj khoom thiab kev siv zog yog lub zog muab tso rau hauv kev txav mus los ntawm lwm qhov kawg ntawm lub fulcrum
Yuav ua li cas koj nrhiav tau lub coordinates ntawm lub midpoint ntawm lub laij lej?
Yuav ua li cas thiaj nrhiav tau ib qho chaw nruab nrab Sau cov kev tswj hwm (x1,y1) thiab (x2,y2). Muab cov nqi rau hauv cov qauv. Ntxiv qhov tseem ceeb hauv kab lus thiab faib txhua qhov tshwm sim los ntawm 2. Cov txiaj ntsig tshiab tsim cov kev tswj hwm tshiab ntawm qhov nruab nrab. Tshawb xyuas koj cov txiaj ntsig siv lub laij lej nruab nrab