Video: Puas yog tsav tsheb kinetic zog?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kinetic zog yog zog ntawm motion. Objects uas tsiv, xws li ib tug roller coaster, muaj kineticenergy (KE). Qhov no txhais tau tias yog a tsheb yog mus ob zaug asfast, nws muaj plaub zaug lub zog . Tej zaum koj yuav tau pom tias koj tsheb nrawm nrawm ntawm 0 mph mus rau 20 mphthan nws ua los ntawm 40 mph mus rau 60 mph.
Ua raws li qhov xav tau, kinetic zog hauv kev tsav tsheb yog dab tsi?
Kinetic zog yog cov zog uas tshwm sim los ntawm kev txav. Qhov tseeb tseem ceeb kom paub yog qhov ntawd kineticenergy nce exponentially; Qhov no txhais tau tias yog tias koj ob npaug koj lub tsheb ceev, koj lub tsheb yog kinetic zog nce plaub zaug. Qhov no kuj txhais tau hais tias koj lub braking thiab stoppingdistance yuav muab faib ua plaub.
Kuj Paub, puas yog lub zog kinetic ua haujlwm? Raws li cov ua haujlwm - zog theorem, cov ua haujlwm ua rau ib yam khoom los ntawm ib tug net quab yuam sib npaug qhov kev hloov nyob rau hauv kinetic zog ntawm qhov khoom. Ua haujlwm yog lub zog ntawm qhov khoom thaum nws hloov qhov kev ncua deb. Interestingly, as ua haujlwm yog ua rau ib yam khoom, muaj peev xwm zog tuaj yeem khaws cia rau hauv qhov khoom ntawd.
Ua raws li qhov no hauv kev xav, lub zog kinetic powered hauv lub tsheb li cas?
Thaum lub cev muaj zog ua haujlwm hauv hom no, nws ua raws li lub tshuab hluav taws xob kom rov qab tau qhov kev sib hloov kinetic zog ntawm lub log, hloov nws mus rau hauv zog thiab khaws cia rau hauv lub tsheb roj teeb. Cov tsheb siv cov zog khaws cia rau hauv lub roj teeb rau zog lub tshuab hluav taws xob uas tsav lub tsheb ntawm qhov ceev ceev.
Yuav ua li cas rau kinetic zog hauv tsheb sib tsoo?
Thaum lub ncov ntawm lub tsoo , thaum lub nrawm iseffectively xoom (thiab yog li nws kinetic zog yog too), the tsheb ua zoo li lub caij nplooj ntoos hlav compressed, khaws cia muaj peev xwm zog . Nyob rau hauv rebounding, lub tsheb regains ib qho me me ntawm kinetic zog - Lub sijhawm no taug kev rov qab.
Pom zoo:
Dab tsi yog lub zog tsav ntawm kev sib sib zog nqus dej hiav txwv ncig?
Hauv dej hiav txwv sib sib zog nqus, qhov tseem ceeb ntawm kev tsav tsheb yog qhov sib txawv ntawm qhov ntom ntom, tshwm sim los ntawm salinity thiab kub variations (nce salinity thiab txo qhov kub ntawm cov kua ob qho tib si nce nws ntom). Muaj feem ntau tsis meej pem txog cov khoom ntawm cov kev ncig uas yog cua thiab ceev tsav
Koj puas tuaj yeem qhia los ntawm cov kev nqus dej no seb lub teeb liab puas ua haujlwm zoo hauv kev tsav tsheb photosynthesis?
Ib qho tsis tuaj yeem qhia los ntawm daim duab no, tab sis vim tias chlorophyll ib lub teeb liab, peb tuaj yeem kwv yees tias nws yuav ua tau zoo hauv kev tsav tsheb photosynthesis. Cov xim no muaj peev xwm nqus tau ntau lub teeb ntawm lub teeb (thiab yog li ntau lub zog) dua li chlorophyll ib leeg tuaj yeem nqus tau
Dab tsi tshwm sim ntawm Theodor Engelmann qhov kev sim nto moo qhia rau nws uas wavelength S yog tus tsav tsheb zoo tshaj plaws ntawm photosynthesis?
Cov kab mob sib sau ua ke ntau tshaj plaws nyob ze ntawm ib feem ntawm cov alga uas tau nthuav tawm cov xim liab thiab xiav wavelengths. Engelmann qhov kev sim ua kom pom tias lub teeb liab thiab xiav yog lub zog zoo tshaj plaws rau photosynthesis
Dab tsi wavelengths ntawm lub teeb zoo tshaj plaws hauv kev tsav tsheb photosynthesis?
Qee qhov liab thiab xiav wavelengths ntawm lub teeb yog qhov zoo tshaj plaws nyob rau hauv photosynthesis vim hais tias lawv muaj raws nraim cov nqi ntawm lub zog rau energize, los yog excite, chlorophyll electrons thiab boost lawv tawm ntawm lawv orbits mus rau ib tug ntau dua lub zog
Dab tsi yog tus tsav tsheb tseem ceeb ntawm huab cua?
Ncaj lossis tsis ncaj, lub hnub muab lub zog rau cov kab mob nyob, thiab nws tsav peb lub ntiaj teb huab cua thiab cov qauv kev nyab xeeb. Vim lub ntiaj teb yog spherical, lub zog ntawm lub hnub tsis ncav cuag txhua qhov chaw uas muaj zog sib npaug