Cov txheej txheem:
Video: Lub ntim ntawm ib lub cev yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ntim ntawm ib daim duab ntsuas qhov peb seem (3D) qhov chaw nws siv. Ntim ntsuas nyob rau hauv cubes. Ib cubic centimeter yog qhov ntim nyob rau hauv ib lub voos xwmfab uas muaj ob sab ntawm qhov ntev, raws li qhia saum toj no.
Ua kom pom qhov no, koj yuav pom qhov ntim ntawm cov duab li cas?
Chav ntsuas ntsuas
- Volume = ntev x dav x qhov siab.
- Koj tsuas yog yuav tsum paub ib sab kom paub qhov ntim ntawm lub voos xwmfab.
- Cov ntsuas ntsuas rau ntim yog cubic units.
- Volume yog nyob rau hauv peb-dimensions.
- Koj tuaj yeem muab cov sab hauv txhua qhov kev txiav txim.
- Sab twg koj hu ntev, dav, lossis qhov siab tsis muaj teeb meem.
Qhov thib ob, qhov piv txwv volume yog dab tsi? Ntim yog ib qho kev ntsuas seb qhov chaw qhov khoom siv li cas. Rau piv txwv ob lub thawv khau ua ke muaj ob zaug ntim ntawm ib lub thawv, vim lawv siv li ob npaug ntawm qhov chaw. Rau piv txwv , nyob rau hauv ib lub voos xwmfab peb pom cov ntim los ntawm kev muab peb sab ntev ua ke. Nyob rau hauv lub kub saum toj no, lub ntim yog 3x3x27.
Ib tug kuj yuav nug, qhov ntim ntawm ib lub cev txhais li cas?
Hauv lej, ntim tuaj yeem txhais tau tias yog qhov chaw 3-dimensional los ntawm ib thaj tsam lossis nyob ntawm ib qho khoom. Ntim ntawm cov khoom geometric yooj yim cov duab zoo li cubes thiab rectangular prism tuaj yeem txiav txim siab siv cov qauv.
Lub cheeb tsam ntawm cov duab yog dab tsi?
Qhov yooj yim tshaj plaws (thiab feem ntau siv) cheeb tsam Kev suav yog rau squares thiab rectangles. Yuav nrhiav tau cheeb tsam ntawm ib daim duab plaub muab nws qhov siab los ntawm nws qhov dav. Rau ib lub square koj tsuas yog yuav tsum nrhiav qhov ntev ntawm ib sab (raws li txhua sab yog tib qhov ntev) thiab muab qhov no los ntawm nws tus kheej kom pom cov cheeb tsam.
Pom zoo:
Lub luag haujlwm ntawm CDK yog dab tsi hauv lub cev ua haujlwm ntawm tes tshwj xeeb hauv lub voj voog ntawm tes?
Los ntawm phosphorylation, Cdks teeb liab lub xov tooj ntawm tes uas nws tau npaj kom dhau mus rau theem tom ntej ntawm lub voj voog ntawm tes. Raws li lawv lub npe qhia, Cyclin-Dependent Protein Kinases yog nyob ntawm cyclins, lwm chav kawm ntawm kev tswj hwm cov protein. Cyclins khi rau Cdks, ua kom cov Cdks rau phosphorylate lwm cov molecules
Dab tsi yog qhov tseeb ntawm lub cev lub cev lub cev kev xav xav?
Lub cev lub cev lub ntsiab lus kev xav (PSSH) yog ib txoj hauj lwm hauv lub tswv yim ntawm kev txawj ntse tsim los ntawm Allen Newell thiab Herbert A. 'Ib lub cim lub cev muaj qhov tsim nyog thiab txaus txhais tau tias rau kev ua haujlwm ntse.'
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
Qhov ntim ntawm 1 Litre ntim yog dab tsi?
Koj tuaj yeem siv qhov hloov pauv 1 litre = 1,000 cubiccentimeters. Txhawm rau hloov los ntawm litres mus rau cubic centimeters, koj yuav muab 1,000. Piv txwv li, yog tias ib lub voos xwmfab muaj qhov ntim ntawm 34 litres, nrhiav qhov ntim hauv cubic centimeters, muab 1,000: 34 x 1,000 = 34,000 cubic centimeters
Lub luag haujlwm ntawm lub cev thiab lub cev yog dab tsi?
Anatomy yog kev kawm txog cov qauv thiab kev sib raug zoo ntawm lub cev. Physiology yog kev kawm txog kev ua haujlwm ntawm lub cev thiab lub cev tag nrho