Video: Dab tsi yog qhov sib npaug hauv physics?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Equilibrium, nyob rau hauv physics , qhov xwm txheej ntawm lub kaw lus thaum tsis yog nws lub xeev ntawm kev txav los yog nws lub zog sab hauv lub xeev yuav hloov nrog lub sijhawm.
Tsuas yog li ntawd, hom kev sib npaug hauv physics 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. Daim duab 1 nthuav qhia qhov sib npaug, xws li cov khoom ua si menyuam roj hmab ntawm tus txiv neej txhais tes, uas muaj nws qhov nruab nrab ntawm lub ntiajteb txawj nqus (cg) ncaj qha hla lub pivot, kom lub zog ntawm tag nrho qhov hnyav yog xoom.
Tsis tas li ntawd, qhov piv txwv ntawm kev sib npaug yog dab tsi? kev sib npaug . Ib piv txwv ntawm kev sib npaug yog nyob rau hauv kev lag luam thaum muab khoom thiab kev thov sib npaug. Ib piv txwv ntawm kev sib npaug yog thaum koj nyob twj ywm thiab khov kho. Ib piv txwv ntawm kev sib npaug yog thaum huab cua kub thiab cua txias nkag mus rau hauv chav nyob rau tib lub sij hawm kom lub zuag qhia tag nrho kub ntawm chav tsev tsis hloov hlo li.
Ntawm no, qhov sib npaug ntawm lub cev yog dab tsi?
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. Thaum tsis muaj zog yog ua kom ib tug lub cev txav mus rau hauv ib kab, cov lub cev yog nyob rau hauv translational kev sib npaug ; thaum tsis muaj zog los ua tus lub cev tig, the lub cev yog nyob rau hauv rotational kev sib npaug.
Lub hauv paus ntsiab lus ntawm equilibrium yog dab tsi?
Cov ntsiab cai ntawm Equilibrium : Ob zog txoj cai : Hais tias yog ob lub zog nyob hauv kev sib npaug lawv yuav tsum sib npaug, opposite thiab collinear. Peb lub zog txoj cai : Hais tias yog peb lub zog nyob rau hauv kev sib npaug tom qab ntawd qhov tshwm sim ntawm ob lub zog yuav tsum sib npaug, sib npaug thiab sib npaug nrog lub zog thib peb.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
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
Qhov sib npaug sib npaug rau qhov nruab nrab ntawm h2so4 los ntawm Koh yog dab tsi?
Hauv daim vis dis aus no peb yuav sib npaug ntawm qhov sib npaug KOH + H2SO4 = K2SO4 + H2O thiab muab cov coefficients raug rau txhua qhov sib xyaw. Txhawm rau sib npaug KOH + H2SO4 = K2SO4 + H2O koj yuav tsum nco ntsoov suav tag nrho cov atoms ntawm txhua sab ntawm cov tshuaj sib npaug
Puas yog txhua qhov sib npaug sib npaug sib npaug?
Thawj qhov sib npaug sib npaug yog qhov tseeb yog tias nws muaj kev txuag kom muaj nuj nqis. Piv txwv li, qhov sib npaug sib cais yeej ib txwm muaj tseeb, txij li lub ntsiab lus lawv yog ntawm daim ntawv: M(y) + N(t) = 0, yog li ϕ(t, y) = A(y) + B(t) yog a khaws cia kom muaj nuj nqis
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no