TSEEM CEEB # 2: txav los yog tshem tawm qhov ntau lossis qhov sib txawv ntawm ib sab ntawm qhov sib npaug, ua qhov kev ua haujlwm 'tawm tsam' nrog nws ntawm ob sab ntawm kab zauv. Piv txwv li yog tias koj muaj g-1 = w thiab xav cais g, ntxiv 1 rau ob sab (g-1 + 1 = w + 1). Simplify (vim (-1 + 1) = 0) thiab xaus nrog g = w + 1
Txhawm rau xam pH los ntawm molar concentration ntawm cov kua qaub, siv lub cav sib xyaw ntawm H3O + ion concentration, thiab muab faib los ntawm -1: pH = - log (H3O +)
Koj tuaj yeem saib cov ntsiab lus ntxiv ntawm txhua chav ntsuas: molecular hnyav ntawm Aspirin lossis grams Cov mis molecular rau Aspirin yog C9H8O4. SI base unit rau tus nqi ntawm cov khoom yog mole. 1 mole yog sib npaug rau 1 moles Aspirin, lossis 180.15742 grams
Boulder Clay. Boulder av nplaum los ntawm Yorkshire, UK los ntawm lub sij hawm Pleistocene, qhia random loj ntau yam clasts nyob rau hauv ib tug glacial av nplaum matrix. Tsim los ntawm ntau yam txheej txheem glacial lossis dej khov, cov pob zeb sedimentary no muaj ntau qhov ntau thiab tsawg
Orbitals nyob rau hauv kev txiav txim kom muaj zog: 1s, 2s, 2p, 3s, 3p, 3d, 4s, 4p, 4d, 4f, 5s, 5p, 5d, 5f, 6s, 6p, 6d, 6f, thiab lwm yam
Ib qho spectrum (plural spectrum lossis spectrums) yog ib yam mob uas tsis txwv rau ib qho tshwj xeeb ntawm cov txiaj ntsig tab sis tuaj yeem sib txawv, tsis muaj cov kauj ruam, hla ib qho txuas ntxiv. Lo lus yog thawj zaug siv scientific hauv optics los piav txog zaj sawv ntawm cov xim nyob rau hauv pom lub teeb tom qab dhau los ntawm ib tug prism
Momentum. Yog hais tias qhov loj ntawm ib yam khoom yog m thiab nws muaj qhov nrawm v, ces lub zog ntawm cov khoom yog txhais tau tias nws cov huab hwm coj multiplied los ntawm nws cov velocity.momentum = mv. Momentum muaj ob qhov loj thiab kev taw qhia thiab yog li yog vector kom muaj nuj nqis. Cov units ntawmmomentum yog kg m s − 1 los yog newton vib nas this, Ns
Nco ntsoov tias qhov tseem ceeb 16 yog qhov loj tshaj plaws perfectsquare
Nws muaj tseeb tias lub ntiaj teb lub orbit tsis yog lub voj voog zoo meej. Nws yog me ntsis lop-sided. Thaum lub sij hawm ib feem ntawm lub xyoo, lub ntiaj teb nyob ze rau lub hnub tshaj li lwm lub sij hawm. Txawm li cas los xij, nyob rau sab qaum teb Hemisphere, peb muaj lub caij ntuj no thaum lub ntiaj teb ze tshaj plaws rau lub hnub thiab lub caij ntuj sov thaum nws nyob deb tshaj plaws
Lub radiant point rau Perseid meteor da dej yog nyob rau hauv lub constellation Perseus. Tab sis koj tsis tas yuav nrhiav tus da dej lub teeb ci kom pom meteors. Hloov chaw, cov meteors yuav ya mus rau txhua qhov chaw ntawm lub ntuj
Txhua lub galaxies ci ntsa iab poob rau hauv ib qho ntawm peb chav kawm dav raws li lawv cov duab: Kauv Galaxies (~ 75%) Elliptical Galaxies (20%) Irregular Galaxies (5%)
Cov suab puam willow lub npe scientific yog Chilopsis linearis. Nws yog tsob ntoo me me, uas feem ntau tsis loj hlob siab dua 30 feet siab thiab 25 feet dav. Qhov no ua rau cog cov suab puam willow ntoo ua tau txawm rau cov uas muaj me me backyards
Beam siv zog. Beam siv yog txhais raws li cov khoom ntawm qhov ntau thiab zoo ntawm lub nqaj thaum raug txheeb ze rau ib cheeb tsam. Yog li ntawd, qhov kev siv ntawm cov nqaj yog cuam tshuam los ntawm beam zoo (kVp) thiab beam kom muaj nuj nqis (mAs)
Thaum kawg, ib qho enzyme hu ua DNA ligase? muab cov DNA sib lawv liag rau hauv ob qhov txuas txuas ntxiv. Qhov tshwm sim ntawm DNA replication yog ob DNA molecules uas muaj ib tug tshiab thiab ib tug qub saw ntawm nucleotides
Unit Ratio. Unit Ratio. Ib qho piv txwv yog qhov piv ntawm ob lub sij hawm qhia nrog rau lub sij hawm thib ob ntawm ib qho. Txhua qhov sib piv tuaj yeem hloov mus rau ib qho piv txwv
Kev hloov ntawm lub xeev yog kev hloov ntawm lub cev hauv qhov teeb meem. Lawv yog cov kev hloov pauv uas tsis cuam tshuam nrog kev hloov pauv ntawm cov teeb meem tshuaj pleev lossis cov khoom siv tshuaj. Kev hloov pauv ntawm lub xeev muaj xws li melting, khov, sublimation, deposition, condensation, thiab vaporization
Gebhard Dietrich Gauss Txiv Dorothea Gauss Niam
Cov tub ntxhais kawm sib xyaw ua ke yuav zaum rau qhov kev xeem thaum kawg ntawm chav kawm raws li qhia hauv qab no. Yuav muaj ob qhov kev xeem Biology, ob qhov kev xeem Chemistry thiab ob qhov kev xeem Physics
Qhov chaw nruab nrab ntawm lub voj voog sib npaug yog nyob rau hauv hom (x – h) 2 + (y – k) 2 = r2, nrog qhov chaw nyob ntawm qhov taw tes (h, k) thiab lub vojvoog yog 'r'. Daim ntawv ntawm qhov sib npaug no yuav pab tau, vim koj tuaj yeem pom qhov chaw nruab nrab thiab lub vojvoog yooj yim
Carbon-carbon composites muaj carbon fibers nyob rau hauv ib tug graphite matrix. Cov pa roj carbon fibers siv muaj cov qauv siab, thiab muaj lub zog tensile siab (Mallick, 2007). Carbon fibers yog tsim los ntawm graphitization ntawm precursors xws li ib tug textile los yog suab
Resistors. Lub resistor yog ib qho cuab yeej uas tawm tsam qhov ntws ntawm hluav taws xob tam sim no. Qhov loj dua tus nqi ntawm ib qho resistor qhov ntau nws tawm tsam cov dej ntws tam sim no. Tus nqi ntawm tus resistor yog muab rau hauv ohms thiab feem ntau hu ua nws 'kuj'
Thawj tRNA hloov nws cov amino acid mus rau cov amino acid ntawm lub tshiab tuaj txog tRNA, thiab ib tug tshuaj bond yog tsim los ntawm ob amino acids. Lub tRNA uas tau muab nws cov amino acid tso tawm. Tom qab ntawd nws tuaj yeem khi rau lwm cov molecule ntawm cov amino acid thiab siv dua tom qab hauv cov txheej txheem tsim cov protein
Cov xaim nyob rau hauv ib lub voj voog nqa hluav taws xob mus rau ntau qhov chaw ntawm lub tshuab hluav taws xob lossis hluav taws xob. Rau cov electrons los ua lawv txoj haujlwm hauv kev tsim lub teeb, yuav tsum muaj lub voj voog ua tiav kom lawv tuaj yeem ntws los ntawm lub teeb thiab tom qab ntawd rov qab tawm
Cheeb Tsam Drains yog tsim los sau cov nag thiab cua daj cua dub los ntawm cov ru tsev, kev taug kev, chaw nres tsheb, thiab txoj kev pav. Oldcastle Infrastructure thav duab thiab grate tiv thaiv cov khib nyiab los ntawm kev nkag mus rau cua daj cua dub tswj dej
Ib tug ciam teb yog ib txoj kab ruaj khov feem ntau ua raws cov kab latitude thiab longitude. cov kab no feem ntau txhais nyob rau hauv ciam teb treaties ntawm lub teb chaws
Bismuth oxide yog suav hais tias yog ib qho yooj yim oxide, uas piav qhia txog kev ua haujlwm siab nrog CO2. Txawm li cas los xij, thaum acidic cations xws li Si (IV) tau qhia hauv cov qauv ntawm bismuth oxide, cov tshuaj tiv thaiv nrog CO2 tsis tshwm sim
Extrachromosomal ncig DNA (eccDNA) muaj nyob rau hauv tag nrho cov hlwb eukaryotic, feem ntau yog muab los ntawm genomic DNA, thiab muaj cov rov ua ntu zus ntawm DNA pom nyob rau hauv ob qho tib si coding thiab non-coding cheeb tsam ntawm chromosomes. EccDNA tuaj yeem sib txawv me me los ntawm tsawg dua 2000 puag khub mus rau ntau dua 20,000 lub hauv paus khub
Covalent Network Solid Covalent network solids muaj xws li cov pob zeb diamond, silicon, ib co lwm yam nonmetals, thiab ib co covalentcompounds xws li silicon dioxide (xuab zeb) thiab silicon carbide (carborundum, abrasive ntawm sandpaper). Piv txwv li, pob zeb diamond yog ib qho nyuaj tshaj plaws uas paub thiab melts saum 3500 ° C
Qhov ntev ntawm 16S rRNA coding gene yog hais txog 1500bp, uas muaj txog 50 qhov chaw ua haujlwm. 16S rRNA muaj ntau txoj haujlwm: ?Lub immobilization ntawm ribosomal proteins ua raws li scaffolding. ?3'end muaj qhov rov qab SD ntu uas siv los khi rau AUG pib codon ntawm mRNA
Cov coefficients ntawm kev sib npaug chemicalequation qhia peb cov txheeb ze ntawm moles ntawm reactants thiab cov khoom. Hauv kev daws teeb meem stoichiometric, kev hloov pauv ntawm moles ntawm reactants rau moles ntawm cov khoom raug siv. Hauv kev suav loj, cov molar loj yog xav tau los hloov cov huab hwm coj mus rau moles
Tso ib nrab ntawm cov ntsiav tshuaj antacid effervescing rau hauv lub canister. Snap lub hau ntawm nruj. Sawv ntsug koj lub foob pob hluav taws ntawm lub platform alaunch, xws li koj txoj kev taug kev lossis kev tsav tsheb. Blasting Off Tso rau koj qhov muag tiv thaiv. Tig lub foob pob hluav taws upside down thiab tshem tawm lub canister'slid. Sau lub kaus poom ib feem peb puv dej
Hauv qhov tshwm sim, ob qhov xwm txheej muaj kev ywj pheej yog tias qhov xwm txheej ntawm ib qho xwm txheej tsis cuam tshuam qhov tshwm sim ntawm lwm qhov xwm txheej. Yog tias qhov xwm txheej ntawm ib qho xwm txheej cuam tshuam rau qhov tshwm sim ntawm lwm qhov xwm txheej, ces cov xwm txheej yog nyob ntawm. Muaj ib tug liab 6-sab ncaj ncees tuag thiab ib tug xiav 6-sab ncaj ncees tuag
Cov ntxhia hauv av yog hydrous aluminium phyllosilicates, qee zaum muaj ntau yam ntawm cov hlau, magnesium, alkali hlau, alkaline ntiaj teb, thiab lwm yam cations pom ntawm lossis ze ntawm qee qhov chaw ntawm lub ntiaj teb. Av nplaum minerals tsim nyob rau hauv lub xub ntiag ntawm dej thiab muaj ib tug tseem ceeb rau lub neej, thiab ntau txoj kev xav ntawm abiogenesis koom nrog lawv
Tus naj npawb ntawm lub sij hawm ib qho tseem ceeb tshwm sim nyob rau hauv daim ntawv factored ntawm qhov sib npaug ntawm ib tug polynomial yog hu ua multiplicity. Qhov xoom cuam tshuam nrog qhov xwm txheej no, x = 2, muaj ntau qhov sib npaug 2 vim tias qhov xwm txheej (x− 2) tshwm sim ob zaug. X-intercept x=− 1 yog qhov rov qab daws ntawm qhov xwm txheej (x + 1) 3 = 0 (x + 1) 3 = 0
Cov kev daws teeb meem ntawm xws li ib qho system yog tus txiav txim khub uas yog ib qho kev daws rau ob qho tib si sib npaug. Txhawm rau daws qhov system ntawm kab zauv sib npaug graphically peb teeb tsa ob qho tib si sib npaug hauv tib qhov kev sib koom ua ke. Kev daws rau qhov system yuav nyob rau hauv qhov chaw uas ob kab sib tshuam
Yuav kom sib npaug K + O2 = K2O koj yuav tsum nco ntsoov suav tag nrho cov atoms ntawm txhua sab ntawm cov tshuaj sib npaug. Thaum koj paub ntau npaum li cas ntawm txhua hom atom koj tuaj yeem hloov pauv cov coefficients (tus lej nyob rau hauv pem hauv ntej ntawm atoms lossis cov khoom sib txuas) kom sib npaug ntawm qhov sib npaug rau Potassium + Oxygen gas
Ntawm no yog qhov txias heev txog cov iav parabolic: qhov ua kom pom tseeb yog qhov taw tes uas tag nrho cov teeb pom kev zoo hla dhau. Qhov no ua rau parabola ib daim iav zoo meej rau kev ua noj kub dev
Daim ntawv 1 – Cell biology; Lub koom haum; Kab mob thiab teb; thiab Bioenergetics. Daim ntawv 2 – Homeostasis thiab teb; Keeb kwm, variation thiab evolution; thiab Ecology
Chromosomes kis los ntawm niam txiv mus rau cov xeeb ntxwv ntawm phev thiab qe. Qhov tshwj xeeb ntawm chromosome uas muaj cov noob txiav txim siab li cas cov noob tau txais los. X thiab Y chromosomes yog "kev sib deev chromosomes". Cov poj niam muaj ob daim qauv ntawm X chromosome, ib qho los ntawm lawv txiv thiab ib qho los ntawm lawv niam
Kev txiav txim siab: Lub molecular geometry ntawm SO2Cl2 yog tetrahedral nrog asymmetriccharge tis ntawm lub hauv paus atom. Yog li no molecule ispolar. Sulfuryl Chloride ntawm Wikipedia