Video: Koj hais li cas rarefaction?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nov yog 4 lub tswv yim uas yuav pab tau koj ua tiav koj cov lus hais ntawm ' tsis tshua muaj tshwm sim ': tawg' tsis tshua muaj tshwm sim ' down into sounds: [RAIR] + [I] + [FAK] + [SHUHN] - hais nws tawm suab nrov thiab exaggerate lub suab kom txog rau thaum koj tuaj yeem tsim lawv.
Ntawm no, piv txwv li cas tsis tshua muaj tshwm sim?
Ib piv txwv ntawm rarefaction kuj yog ib theem nyob rau hauv lub suab yoj los yog phonon. Ib nrab ntawm lub suab yoj yog tsim los ntawm compression ntawm qhov nruab nrab, thiab ib nrab yog decompression lossis tsis tshua muaj tshwm sim ntawm qhov nruab nrab.
Ib sab saum toj no, dab tsi yog lub ntsiab lus ntawm rarefaction hauv science? tsis tshua muaj tshwm sim . Thaum twg tsis tshua muaj tshwm sim tshwm sim, cov particles nyob rau hauv ib tug gas yuav kis tau ntau dua. Koj tuaj yeem hla lo lus no hauv cov ntsiab lus ntawm lub suab nthwv dej. Lub suab nthwv dej txav los ntawm huab cua yog ua los ntawm cov chaw sib txawv ntawm qhov siab dua thiab qis dua. Cov cheeb tsam ntawm qhov qis qis yog hu ua tsis tshua muaj tshwm sim.
Ntawm no, qhov tsis tshua muaj tshwm sim nyob qhov twg?
A tsis tshua muaj tshwm sim yog ib cheeb tsam nyob rau hauv ib tug longitudinal nthwv dej uas cov hais nyob deb tshaj sib nrug. Raws li pom nyob rau hauv daim duab 9.2, muaj cov cheeb tsam uas qhov nruab nrab yog compressed thiab lwm thaj chaw uas qhov nruab nrab yog kis tawm nyob rau hauv ib tug longitudinal yoj.
Dab tsi ua rau Rarefraction?
Cov Ua rau ntawm Refraction . Peb kawm tau li ntawd refraction tshwm sim thaum lub teeb hla hla ciam teb ntawm ob qhov xov xwm. Kev xa tawm ntawm lub teeb hla ib thaj tsam ntawm ob qho kev tshaj tawm yog nrog kev hloov pauv ntawm ob qho tib si ceev thiab wavelength ntawm nthwv dej.
Pom zoo:
Yuav ua li cas koj qhia yog hais tias ib tug transformation yog ib tug dilation?
Ib qho kev piav qhia ntawm qhov dilation suav nrog qhov ntsuas qhov ntsuas (lossis qhov piv) thiab qhov nruab nrab ntawm qhov dilation. Qhov chaw ntawm dilation yog ib qho chaw ruaj khov hauv lub dav hlau. Yog tias qhov ntsuas qhov ntsuas ntau dua 1, daim duab yog qhov loj (qhov ncab). Yog tias qhov ntsuas qhov ntsuas nyob nruab nrab ntawm 0 thiab 1, daim duab yog qhov txo qis (qhov qis)
Yuav ua li cas koj txiav txim siab yog hais tias ib tug muaj nuj nqi muaj ib tug kab rov tav tangent?
Kab rov tav kab muaj txoj kab nqes ntawm xoom. Yog li ntawd, thaum lub derivative yog xoom, cov kab tangent yog kab rov tav. Txhawm rau nrhiav cov kab kab rov tav tangent, siv qhov derivative ntawm txoj haujlwm los nrhiav qhov xoom thiab ntsaws lawv rov qab rau hauv qhov sib npaug qub
Vim li cas peb thiaj li hais txog kev txwv tsis pub muaj kev hais tawm thiab thaum twg peb yuav hais cov kev txwv?
Peb hais txog kev txwv vim nws yuav ua rau qhov sib npaug tsis tau txhais hauv qee qhov txiaj ntsig ntawm x. Qhov kev txwv ntau tshaj plaws rau cov lus qhia muaj nuj nqis yog N / 0. Qhov no txhais tau tias txhua tus lej muab faib los ntawm xoom tsis tau txhais. Piv txwv li, rau txoj haujlwm f(x) = 6/x², thaum koj hloov x = 0, nws yuav ua rau 6/0 uas tsis tau txhais
Koj cov noob caj noob ces hais li cas txog koj?
Koj Genes Thiab Koj Nws hu ua DNA, thiab feem ntau yog tib yam rau txhua tus. Tab sis ib feem me me ntawm nws yog koj ib leeg. Cov kev sib txawv no pab txiav txim seb koj zoo li cas, koj lub cev ua haujlwm, koj txoj kev pheej hmoo rau kab mob, thiab koj tus cwj pwm
Koj cov noob hais li cas txog koj?
Ib lub noob yog ib ntu luv ntawm DNA. Koj cov noob muaj cov lus qhia uas qhia koj lub hlwb kom ua cov molecules hu ua proteins. Proteins ua ntau yam haujlwm hauv koj lub cev kom koj noj qab haus huv. Txhua lub noob muaj cov lus qhia uas txiav txim siab koj cov yam ntxwv, xws li qhov muag xim, xim plaub hau thiab qhov siab