Cov txheej txheem:
Video: Koj puas hloov ua ntej lossis tom qab ntxiv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Raws li koj ua tau saib, nrhiav a puag ncig sum, itis quickest rau puag ncig cov lej ua ntej ntxiv lawv.1. Qee cov kws txheeb cais nyiam puag ncig 5 mus rau tus lej xov tooj ze tshaj plaws. Raws li qhov tshwm sim, kwv yees li ib nrab ntawm lub sijhawm 5 yuav ua puag ncig nce, thiab txog ib nrab ntawm lub sij hawm nws yuav ua puag ncig nqes.
Kuj nug, ua li cas koj round zoo?
Ua ntej, txiav txim siab seb koj tus lej sib npaug yog dab tsi thiab tom qab ntawd saib tus lej ntawm sab xis
- Yog tias tus lej yog 0, 1, 2, 3, lossis 4, tsis txhob hloov tus lej lej. Txhua tus lej uas nyob rau sab xis ntawm tus lej thov kom dhau los ua 0.
- Yog tias tus lej yog 5, 6, 7, 8, lossis 9, tus lej sib npaug sib npaug ntawm ib tus lej.
Tsis tas li ntawd, qhov sib txawv ntawm qhov sib npaug thiab kev kwv yees yog dab tsi? Rau kwv yees txhais tau tias ua ib tug ntxhib kwv yees orcalculation. Hloov pauv txhais tau tias ua kom yooj yim tus lej paub los ntawm scalingit me ntsis nce lossis nqis. Rounding yog hom kwv yees . Ob txoj hauv kev tuaj yeem pab koj ua kev kawm kwv yees thiab siv tau hauv lub neej txhua hnub rau kev ua haujlwm ntsig txog nyiaj, sijhawm lossis nyob deb.
Kuj paub, koj puas puag ncig thaum muab cov lej tseem ceeb?
Rounding Multiplication Koj yuav multiply (los yog faib) cov tus lej raws li ib txwm, tab sis tom qab ntawd koj yuav round cov lus teb rau tib tus lej ntawm tus lej tseem ceeb raws li tus lej tsawg kawg nkaus.
Muaj pes tsawg tus lej tseem ceeb 100 muaj?
Raws li tus lej lej, 100 (los yog lwm tus lej) yog qhov muaj pes tsawg leeg thiab lub tswv yim ntawm cov duab tseem ceeb tsis siv. Yog tias koj xav tau qhov ntsuas 100 nrog peb cov duab tseem ceeb (hais tsis paub tseeb ntawm), koj tuaj yeem sau nws li 100.
Pom zoo:
Puas yog cov tshuaj tiv thaiv tom ntej endothermic lossis exothermic?
Cov tshuaj tiv thaiv pem hauv ntej muaj ΔH>0. Qhov no txhais tau tias cov tshuaj tiv thaiv pem hauv ntej yog endothermic. Yog li ntawd, cov tshuaj tiv thaiv yuav tsum tau beexothermic
Vim li cas tom qab kev hloov pauv kev hloov pauv tseem ceeb?
Kev hloov pauv tom qab kev txhais lus (PTMs) xws li glycosylation thiab phosphorylation ua lub luag haujlwm tseem ceeb ntawm kev ua haujlwm ntawm hemostatic proteins thiab tseem ceeb heev hauv kev teeb tsa kab mob. Xws li theem nrab hloov pauv rau cov proteins hemostatic muaj ntau yam cuam tshuam rau lawv lub peev xwm los cuam tshuam nrog lwm cov proteins
Puas yog tus nplaig dov txuas ntxiv lossis tsis txuas ntxiv?
Tus nplaig dov yog ib qho piv txwv ntawm kev hloov pauv tsis tu ncua: koj tuaj yeem yob koj tus nplaig lossis koj ua tsis tau. Cov yam ntxwv uas qhia kev hloov pauv tas mus li feem ntau yog tshwm sim los ntawm txoj kev nyuaj, lossis ntau yam, cov qauv ntawm cov qub txeeg qub teg uas muaj ntau yam sib txawv ntawm cov noob thiab cov yam ntxwv hauv ib puag ncig (piv txwv li, kev noj haus)
Koj tuaj yeem qhia tau li cas yog tias muaj kev cuam tshuam rau pem hauv ntej lossis thim rov qab?
Yog tias K K, cov reactants tau txais kev pom zoo. Yog tias Q< K, cov khoom raug nyiam
Puas yog lub pob nrawm tom qab koj pov nws?
Yog tias koj pov lub pob nce siab nrog qhov nrawm ntawm 9.8 m / s, qhov nrawm muaj qhov loj ntawm 9.8 m / s nyob rau sab saud. Lub pob muaj xoom tshaj tawm, tab sis lub acceleration vim lub ntiajteb txawj nqus accelerates lub pob downward ntawm tus nqi ntawm -9.8 m / s2. Thaum lub pob ntog, nws sib sau ceev ua ntej koj ntes nws