Video: Yuav ua li cas rau ib qho khoom wavelength thaum cov khoom txav ntawm koj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog tias khoom yog tsiv rau koj , thewaves yog compressed, yog li lawv wavelength luv dua. Yog tias khoom yog txav deb ntawm koj , cov nthwv dej yog stretched tawm, yog li lawv wavelength yog ntev dua. Cov kab yog hloov mus ntev (redder) wavelengths --- qhov no hu ua aredshift.
Ib yam li ntawd, tib neeg nug, dab tsi yog hais txog kev hloov pauv ntawm lub wavelength uas tshwm sim thaum ib qho khoom txav mus rau lossis tawm ntawm qhov chaw?
Cov lus teb yog doppler nyhuv. nws qhov nce lossis txo qhov zaus ntawm lub suab, lub teeb, lossis lwm yam nthwv dej raws li qhov qhov chaw thiab soj ntsuam txav mus los yog deb los ntawm ib leeg. Piv txwv yog thaum tam sim ntawd hloov nyob rau hauv lub suab yog pom nyob rau hauv ib tug passingsiren.
Tsis tas li ntawd, tus kws tshawb fawb nto moo twg thawj zaug siv lub tsom iav raj rau kev soj ntsuam astronomical? Galileo Galilei
Raws li, yam xim twg muaj zog tshaj photons?
Liab los yog violet yog lub xim nrog rau feem ntau muaj zog photons !!
Qhov twg ntawm lub hnub nyob ncaj qha saum qhov chaw pom?
Photosphere yog pom saum npoo ntawm Hnub . Thesolar cua muaj xws li chromosphere thiab corona.
Pom zoo:
Thaum koj kub calcium carbonate ib qho khoom dawb nrog cov mis CaCO3 nws tawg los ua cov khoom calcium oxide CaO thiab carbon dioxide gas co2?
Thaum tshav kub kub tshaj 840 ° C, calcium carbonate decomposes, tso cov pa roj carbon dioxide thiab tawm hauv qab calcium oxide - cov khoom dawb. Calcium oxide hu ua txiv qaub thiab yog ib qho ntawm 10 cov tshuaj uas tsim tawm txhua xyoo los ntawm thermal decomposition ntawm limestone
Yuav ua li cas koj txav qhov sib txawv mus rau lwm sab ntawm ib qho kev sib npaug?
TSEEM CEEB # 2: txav los yog tshem tawm qhov ntau lossis qhov sib txawv ntawm ib sab ntawm qhov sib npaug, ua qhov kev ua haujlwm 'tawm tsam' nrog nws ntawm ob sab ntawm kab zauv. Piv txwv li yog tias koj muaj g-1 = w thiab xav cais g, ntxiv 1 rau ob sab (g-1 + 1 = w + 1). Simplify (vim (-1 + 1) = 0) thiab xaus nrog g = w + 1
Thaum lub ntim ntawm ib qho piv txwv ntawm cov pa roj yog txo lub siab ntawm cov qauv ntawm cov pa roj?
Kev txo qis Cov pa roj sib xyaw txoj cai hais tias lub siab ntawm cov pa roj yog inversely cuam tshuam nrog lub ntim thiab ncaj qha ntsig txog qhov kub thiab txias. Yog tias qhov kub thiab txias yog nyob tas li, qhov sib npaug raug txo rau Boyle txoj cai. Yog li ntawd, yog tias koj txo qhov siab ntawm cov roj av tas li, nws qhov ntim yuav nce ntxiv
Vim li cas lub caij nplooj ntoos hlav ncab hauv koj qhov kev sim thaum cov khoom txav mus rau hauv txoj kev ncig?
Feem ntau, cov khoom txav mus rau hauv txoj kev ncig vim lub caij nplooj ntoos hlav yog lub zog ntawm cov khoom mus rau qhov chaw ntawm txoj kev ncig. Muaj kev tsis sib haum xeeb ntawm lub zog no thiab cov khoom inertia. Yog li ntawd lub caij nplooj ntoos hlav stretches tawm vim hais tias ntawm cov khoom tangential ceev thiab inertia?
Yuav ua li cas tshwm sim thaum lub zog tsis sib npaug ua rau ntawm ib qho khoom txav?
Yog hais tias ib yam khoom muaj ib tug net force ua rau nws, nws yuav ceev. Cov khoom yuav ua kom nrawm, qeeb lossis hloov kev taw qhia. Lub zog tsis sib npaug (net force) ua rau ntawm qhov khoom hloov nws qhov nrawm thiab / lossis kev taw qhia ntawm kev txav. Lub zog tsis sib npaug yog lub zog tsis muaj zog uas ua rau muaj kev hloov pauv ntawm kev txav mus los