Video: Yuav ua li cas koj xam equilibrium force?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Net quab yuam Yuav tsum Zero
Cov net zog ua yeeb yam ntawm cov khoom yuav tsum yog xoom. Yog li ntawd tag nrho zog sib npaug ntawm txhua qhov kev taw qhia. Piv txwv li, ib lub tsheb txav raws txoj kev loj ntawm qhov ceev tsis tu ncua yog nyob rau hauv kev sib npaug , raws li nws tsis nrawm nyob rau hauv ib qho kev taw qhia pem hauv ntej lossis ntsug. Ua lej, qhov no tau hais tias Fnet = mas = 0.
Ntawm no, dab tsi yog quab yuam equilibrium?
Ib lub tswv yim yooj yim heev thaum cuam tshuam nrog zog yog lub tswv yim ntawm kev sib npaug los yog tshuav nyiaj li cas. Yog qhov loj thiab kev taw qhia ntawm lub zog ua yeeb yam ntawm ib yam khoom yog qhov sib npaug, ces tsis muaj net zog ua yeeb yam ntawm cov khoom thiab cov khoom yog hais tias nyob rau hauv kev sib npaug.
3 hom equilibrium yog dab tsi? Muaj peb hom equilibrium : ruaj khov, tsis ruaj khov, thiab nruab nrab. Cov duab thoob plaws qhov module no qhia txog ntau yam piv txwv.
Yog li ntawd, qhov sib npaug ntawm qhov sib npaug yog dab tsi?
Kev sib npaug ntawm EQUILIBRIUM • Raws li tau hais ua ntej, thaum lub cev nyob hauv qhov sib npaug, lub vas zog thiab lub sijhawm sib npaug ntawm xoom, piv txwv li F = 0 thiab M = 0 Ob qhov kev sib npaug vector no tuaj yeem sau ua rau scalar equations ntawm equilibrium.
Dab tsi yog qhov sib npaug ntawm lub cev?
kev sib npaug , lub xeev ntawm kev sib npaug. Thaum a lub cev los yog ib qho system nyob hauv kev sib npaug , tsis muaj net nyiam hloov. Hauv mechanics, kev sib npaug yuav tsum ua nrog lub zog ua haujlwm ntawm a lub cev.
Pom zoo:
Yuav ua li cas koj xam tus qauv sib txawv ntawm PMP?
Cov mis siv nyob rau hauv PMBOK rau tus qauv sib txawv yog yooj yim. Nws tsuas yog (P-O) / 6. Qhov ntawd yog qhov pessimistic kev ua ub no kwv yees rho tawm qhov kev kwv yees qhov kev xav tau muab faib los ntawm rau. Qhov teeb meem yog qhov no nyob rau hauv tsis muaj txoj kev zoo los yog daim ntawv tsim ib qho kev ntsuas ntawm tus qauv deviation
Yuav ua li cas koj xam qhov ncig ntawm lub ntiaj teb ntawm nws latitude?
Circumference ntawm lub voj voog yog sib npaug rau 2 π r qhov twg r yog nws lub vojvoog. Nyob rau hauv lub ntiaj teb no, lub circumference ntawm tus kheej ntawm ib tug muab latitude yog 2πr(cos θ) qhov twg θ yog lub latitude thiab r yog lub vojvoog ntawm lub ntiaj teb ntawm kab zauv
Yuav ua li cas koj xam cov kev hloov nyob rau hauv equilibrium?
Equilibrium yog txiav txim los ntawm kev ntxiv 'Initial' thiab 'Hloov ua ke. Yog tias x = 1.78 ces [C2H4]Eq yog qhov tsis zoo, uas yog tsis yooj yim sua, yog li, x yuav tsum sib npaug 0.098
Yuav ua li cas koj xam lub sij hawm nws yuav siv sij hawm mus ncig teb chaws?
Kwv yees seb koj yuav mus sai npaum li cas ntawm koj qhov kev mus ncig. Tom qab ntawd, faib koj qhov kev ncua deb ntawm koj qhov nrawm. Qhov no yuav muab rau koj anestimation ntawm koj lub sijhawm mus ncig. Piv txwv li, yog tias koj mus ncig yog 240 mais thiab koj yuav tsav 40 mais ib teev, koj lub sijhawm yuav yog 240/40 = 6hours
Yuav ua li cas koj xam lub sij hawm nws yuav siv ib yam khoom los poob?
Ntsuas qhov deb ntawm qhov khoom yuav poob hauv ko taw nrog tus pas ntsuas lossis ntsuas daim kab xev. Faib qhov kev ncua deb los ntawm 16. Piv txwv li, yog tias cov khoom yuav poob 128 ko taw, faib 128 los ntawm 16 kom tau 8. Xam cov square root ntawm cov kauj ruam 2 los nrhiav lub sij hawm nws yuav siv cov khoom poob hauv vib nas this