Video: Lub suab nrov nrov yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Kev nthuav tawm ntawm suab . Suab yog ib ntu ntawm cov nthwv dej siab uas nthuav tawm los ntawm cov xov xwm compressible xws li huab cua lossis dej. ( Suab ua tau nthuav tawm los ntawm cov khib nyiab ib yam nkaus, tab sis muaj cov qauv ntxiv ntawm kev nthuav tawm ). Thaum lawv kev nthuav tawm , nthwv dej tuaj yeem cuam tshuam, cuam tshuam, lossis attentuated los ntawm qhov nruab nrab.
Ntawm no, yuav ua li cas suab propagate nyob rau hauv dej?
Suab vuag in dej , qab hiav txwv A suab yoj nthuav tawm underwater muaj alternating compressions thiab rarefactions ntawm lub dej . Cov compressions thiab rarefactions yog kuaj pom los ntawm ib tug receiver, xws li tib neeg pob ntseg los yog ib tug hydrophone, raws li kev hloov nyob rau hauv lub siab. Cov nthwv dej no tej zaum yuav yog neeg tsim los yog tsim tawm.
Tsis tas li ntawd, lub suab yog dab tsi thiab nws propagate los ntawm huab cua li cas? Nyob rau hauv cov ntaub ntawv ntawm suab taug kev los ntawm huab cua , molecules ntawm huab cua yog compressed ua ke los ntawm cov khoom vibrating thaum nws txav mus rau hauv huab cua , thiab ces rub sib nrug thaum lub vibration txav mus rau lwm txoj kev.
Ib sab saum toj no, dab tsi yog kev nthuav tawm ntawm lub suab chav kawm 9?
Kev mus los ntawm suab hu ua propagation ntawm suab . Suab yog nthuav tawm los ntawm kev txav mus los ntawm qhov nruab nrab ntawm qhov nruab nrab. Thaum ib yam khoom vibrates, cov hais nyob ib ncig ntawm qhov nruab nrab vibrate. Txhua qhov cuam tshuam rau lwm cov khoom hauv kev sib cuag.
Dab tsi yog qhov tsim nyog rau kev nthuav tawm suab?
Qhov nruab nrab yog qhov tseem ceeb rau cov kev nthuav tawm ntawm suab . Suab tsis tuaj yeem taug kev los ntawm lub tshuab nqus tsev vim qhov tseeb tias tsis muaj cov molecules uas tuaj yeem compressed thiab nthuav dav hauv qhov chaw.
Pom zoo:
Dab tsi yog qhov laj thawj tseem ceeb uas koj tuaj yeem hnov lub suab nrov nyob deb ntawm dej thaum hmo ntuj?
Qhov kub thiab txias inversion yog vim li cas vim li cas lub suab tuaj yeem hnov ntau dua qhov kev ncua deb ntawm hmo ntuj tshaj li thaum nruab hnub - ib qho cuam tshuam feem ntau tsis raug rau kev puas siab puas ntsws tshwm sim thaum hmo ntuj nyob ntsiag to
Puas yog lub suab nrov dua hauv cov kua lossis roj?
Qhov kev sim qhia tau hais tias cov khoom yog qhov zoo tshaj plaws ntawm 3 qhov nruab nrab rau lub suab mus rau qhov nrov tshaj plaws.Tib yam, raws li cov kua molecules nyob ze rau ib leeg piv rau cov pa roj, suab mus zoo dua dhau los ntawm cov roj
Cov tub txib thib ob ua kom lub suab nrov nrov li cas?
Cov kev taw qhia intracellular no, tseem hu ua teeb liab transduction cascades, feem ntau nthuav cov lus, ua ntau yam intracellular signals rau txhua tus receptor uas yog khi. Piv txwv li, cyclic AMP (cAMP) yog tus xa xov thib ob uas muaj feem cuam tshuam nrog cov teeb liab hloov pauv
Lub npe nrov rau protists yog dab tsi?
Piv txwv ntawm protists muaj xws li algae, amoebas, euglena, plasmodium, thiab slime pwm. Protists uas muaj peev xwm ntawm photosynthesis muaj xws li ntau hom algae, diatoms, dinoflagellates, thiab euglena. Cov kab mob no feem ntau yog unicellular tab sis tuaj yeem tsim cov kab ke
Qhov nrov lossis softness ntawm lub suab yog dab tsi?
Lub amplitude ntawm lub suab nthwv dej txiav txim siab nws nrov lossis ntim. Lub amplitude loj dua txhais tau hais tias lub suab nrov, thiab lub amplitude me me txhais tau hais tias lub suab softer.Nyob rau hauv daim duab 10.2 suab C yog nrov tshaj suab B. Kev vibration ntawm ib qhov chaw teev lub amplitude ntawm ib nthwv dej