Video: Dab tsi yog zaus denoted los ntawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Feem ntau, zaus tuaj yeem xav txog qhov kev hloov pauv ntawm PHASE. Saib ntxiv: NYEEM, LAW OF UNCERTAINTY. Ntau zaus yog npe los ntawm lub cim f, thiab ntsuas hauv hertz (Hz) - yav tas los hu ua cycles per second (cps lossis c/s) - kilohertz (kHz), lossis megahertz (mHz).
Kuj nug, koj ntaus lub cim zaus li cas?
Cov cim feem ntau siv rau zaus yog f thiab Greek tsiaj ntawv nu (ν) thiab omega (ω). Nu siv ntau zaus thaum qhia txog cov nthwv dej electromagnetic, xws li lub teeb, X-rays, thiab gamma rays.
Dab tsi yog lub cim rau zaus hauv physics? Chav tsev SI rau zaus yog Hertz (Hz), uas yog sib npaug rau cov laus chav nyob ib ob (cps). Frequency kuj tseem hu ua cycles per second lossis temporal zaus. Cov cim ib txwm muaj rau zaus yog tsab ntawv Latin f lossis Greek tsab ntawv ν ( nu ).
Ua kom pom qhov no, lub cim zaus hu ua dab tsi?
Hertz ( cim Hz) yog Ntau zaus , nyob rau hauv physics, tus naj npawb ntawm nthwv dej uas dhau ib qho chaw ruaj khov hauv chav tsev lub sijhawm; Tsis tas li ntawd, tus naj npawb ntawm cov voj voog lossis kev vibrations tau dhau los ntawm ib chav tsev ntawm lub sijhawm los ntawm Txhua cim hauv kev sib npaug yog tham hauv qab no.
Lub sij hawm thiab zaus yog dab tsi?
Ntau zaus yog tus naj npawb ntawm qhov tshwm sim ntawm ib qho kev tshwm sim rov qab rau ib chav tsev ntawm lub sijhawm. Nws tseem hu ua temporal zaus , uas hais txog qhov sib txawv rau spatial zaus thiab angular zaus . Cov lub sij hawm yog lub sij hawm ntawm lub sij hawm ntawm ib lub voj voog nyob rau hauv ib qho kev tshwm sim rov ua dua, yog li qhov lub sij hawm yog qhov sib txawv ntawm cov zaus.
Pom zoo:
Dab tsi yog kev sib raug zoo ntawm wavelength zaus thiab qhov ceev ntawm lub teeb?
Lub wavelength thiab zaus ntawm lub teeb yog ze ze. Qhov siab dua qhov zaus, qhov luv dua lub wavelength. Vim tias txhua lub teeb tsis txav mus los ntawm lub tshuab nqus tsev ntawm tib lub nrawm, tus naj npawb ntawm nthwv dej crests dhau los ntawm ib qho taw tes hauv ib thib ob nyob ntawm qhov wavelength
Dab tsi yog cov hlau nplaum uas ua los ntawm qhov kev npaj ntawm electrons yog dab tsi?
Electrons yog teem rau hauv plhaub thiab orbitals nyob rau hauv ib tug atom. Yog hais tias lawv sau lub orbitals kom muaj ntau spin taw tes rau hauv qab (los yog vice versa), txhua atom yuav ua zoo li ib tug me me hlau nplaum. Thaum ib daim ntawm cov hlau tsis muaj hlau nplaum (lossis lwm yam khoom siv ferromagnetic) raug rau sab nraud magnetic teb, ob yam tshwm sim
Dab tsi yog lub ntsiab lus ntawm kev hloov pauv lom neeg hauv cov ntsiab lus ntawm allele zaus?
Microevolution, los yog evolution ntawm ib tug me me, yog txhais raws li ib tug kev hloov nyob rau hauv lub zaus ntawm noob variants, alleles, nyob rau hauv ib tug pej xeem ntau tiam. Lub teb ntawm biology uas kawm txog allele frequencies nyob rau hauv cov pejxeem thiab yuav ua li cas lawv hloov lub sij hawm yog hu ua pej xeem noob caj noob ces
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms