Nws yog qhov kev hloov pauv ntawm qhov nrawm nrawm, faib los ntawm kev hloov pauv hauv lub sijhawm. Qhov nruab nrab angular acceleration yog qhov kev hloov ntawm lub angular tshaj tawm, muab faib los ntawm kev hloov hauv lub sijhawm. Lub angular acceleration yog ib tug vector uas taw tes rau hauv adirection raws lub rotation axis. Chav tsev ntawm angularacceleration yog radians / s2
Linear regression yog siv los kwv yees tus nqi ntawm qhov sib txawv tsis tu ncua Y raws li ib lossis ntau qhov kev sib piv cov tswv yim sib txawv X. Lub hom phiaj yog los tsim cov qauv lej ntawm cov lus teb sib txawv (Y) thiab qhov sib txawv ntawm qhov ntsuas (Xs). Koj tuaj yeem siv cov qauv no los kwv yees Y, thaum tsuas yog X qhov tseem ceeb paub
Tus Qauv Hais Lus yog ib lo lus sib npaug uas sawv cev rau qhov xwm txheej tiag tiag. Hauv lwm lo lus, nws siv cov lus los piav txog cov tswv yim thiab cov cim lej los txheeb cov lus. Tsis muaj tus lej siv hauv cov qauv lus, tab sis cov cim lej tseem ceeb thiab tus qauv yuav tsum muaj tseeb
Tus naj npawb atomic yog tus naj npawb ntawm protons hauv ib qho atom ntawm lub ntsiab. Hauv peb qhov piv txwv, krypton tus lej atomic yog 36. Qhov no qhia peb tias atom ntawm krypton muaj 36 protons hauv nws cov nucleus
Cov tshuaj nquag siv los ua kom lub cev qhuav dej muaj xws li concentrated phosphoric acid, concentrated sulfuric acid, kub ceramic thiab kub aluminium oxide
Daim duab qhia txog qhov muaj pes tsawg leeg ntawm nuclear thiab hluav taws xob teeb tsa ntawm ib qho atom ntawm oxygen-16 (atomic naj npawb: 8), feem ntau isotope ntawm lub caij oxygen. Lub nucleus muaj 8 protons (liab) thiab 8 neutrons (xiav). Qhov kev ruaj ntseg ntawm cov khoom siv hluav taws xob sab nraud txiav txim siab nws cov khoom siv tshuaj thiab lub cev
Raws li NASA, cov pa roj hauv ntiaj teb huab cua suav nrog: Nitrogen - 78 feem pua. Oxygen - 21 feem pua. Argon - 0.93 feem pua. Cov pa roj carbon dioxide - 0.04 feem pua. Cov lej ntawm neon, helium, methane, krypton thiab hydrogen, nrog rau dej vapor
Ib lub cubic meter ntawm av hnyav ntawm 1.2 thiab 1.7 metric tonnes, los yog nruab nrab ntawm 1,200 thiab 1,700 kilograms. Cov lej ntsuas no hloov mus rau ntawm 2,645 thiab 3,747 phaus, lossis nruab nrab ntawm 2.6 tons thiab 3.7 tons, ib lub cubic meter. Loose topsoil yog sib dua, thiab compacted topsoil yog hnyav dua
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. Lwm cov yam ntxwv, piv txwv li qhov siab thiab qhov hnyav, qhia qhov sib txawv tsis tu ncua. Cov neeg tuaj nyob rau hauv tag nrho cov duab thiab ntau thiab tsawg
Lub lysosome yog ib lub cell organelle. Lawv zoo li spheres. Nrog rau kev txhais dav dua, lysosomes pom nyob rau hauv cytoplasm ntawm cov nroj tsuag thiab protists nrog rau cov tsiaj cell. Lysosomes ua haujlwm zoo li lub plab zom mov kom zom, lossis zom, cov protein, acids, carbohydrates, cov kab mob tuag, thiab lwm yam khoom siv tsis xav tau
Feem ntau hom ntoo yuav pib combusting ntawm li 300 degrees Celsius. Cov pa roj hlawv thiab nce qhov kub ntawm cov ntoo mus txog 600 degrees Celsius (1,112 degrees Fahrenheit). Thaum cov ntoo tso tawm tag nrho nws cov gases, nws tawm charcoal thiab tshauv
Nucleated settlements yog cov nroog uas cov tsev nyob ze ua ke, feem ntau ua ke nyob ib ncig ntawm qhov chaw nruab nrab. Qhov chaw ntawm kev sib haum xeeb nucleated tuaj yeem txiav txim siab los ntawm ntau yam, suav nrog kev tiv thaiv yooj yim, ze rau cov dej los yog nyob ntawm qhov chaw khiav dej num
Calcium cyanide decomposes rau tsis tshua muaj tshuaj lom thiab flammable hydrogen cyanide thiab tshuaj lom thiab irritating nitrogen oxides thaum rhuab hauv hluav taws. QHOV 9. Lub cev thiab tshuaj lom neeg. Lub cev lub cev: Lub hauv paus ruaj khov: Reacts maj mam nrog dej los tsim calcium hydroxide, uas yog lub hauv paus muaj zog
Tsoom Fwv Teb Chaws Asmeskas, Psychology, Tib Neeg Geography, thiab Environmental Science yuav yooj yim dua vim tias muaj qhov sib piv tsawg dua los npog ua ntej kev xeem. Kuj tseem nco ntsoov tias qee lub tsev kawm ntawv hnyav AP chav kawm, yog li lawv tuaj yeem txhawb koj GPA yog tias koj ua tau zoo
Ib tug forensic av geologist nyob rau hauv ib lub chaw soj nstuam yog lub luag hauj lwm rau cov kev soj ntsuam ntawm av pov thawj uas yog sau nyob rau hauv ib tug ua txhaum cai scene thiab coj mus rau lub chaw soj nstuam kom ntxaws. Forensic geologists, ntawm qhov tod tes, tsis nyob ntawm qhov chaw ua txhaum cai thiab ua txhua yam ntawm lawv txoj haujlwm hauv chav kuaj
Peb ua si "Dab tsi yog Hnub Wednesday" nrog rau qhov no - nws yog tus nres caliper swb tus pin khau raj! Lub nres caliper yog hydraulically ua haujlwm (tseem ceeb ntawm koj ko taw) thiab yog lub luag haujlwm los txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau tsim kev sib txhuam tawm tsam lub rotating nres rotor. Lub log yog bolted rau lub nres rotor
Teb thiab piav qhia: Lub npe ntawm BaCO3 isbarium carbonate. Ba + 2 yog barium ion, uas tshwm sim los ntawm abarium atom poob ob lub electrons. Carbonate yog polyatomicion
Dab tsi yog qhov txawv ntawm qhov pom tseeb thiab qhov tseeb? Pom meej qhov loj npaum li cas yog qhov ci ntawm lub hnub qub tshwm los ntawm lub ntiaj teb thiab nyob ntawm qhov ci thiab qhov deb ntawm lub hnub qub. Qhov loj npaum li cas yog qhov ci ntawm lub hnub qub yuav tshwm sim los ntawm tus qauv nyob deb
Ib lub cell uas muaj kab mob ua rau cov kab mob kis tau ntau dua thiab cov khoom siv caj ces es tsis yog nws cov khoom qub. Qee cov kab mob yuav nyob twj ywm hauv cov tswv tsev rau lub sijhawm ntev, ua rau tsis muaj kev hloov pauv hauv lawv cov tswv tsev (ib theem hu ua lysogenic theem). Cov kab mob ua rau muaj ntau yam kab mob hauv eukaryotes
Lub substory txheej yog tangle ntawm shrubs, ntoo hluas, saplings, xibtes thiab vines. Nws yog kub thiab damp ntawm no thiab huab cua tseem heev. Daim vis dis aus no ntawm cov txheej txheem understory tau coj hauv Amazon Rainforest
Cov zis tam sim no ntawm cov kauj ruam-up transformer yog tsawg dua, thiab yog li nws yog siv los txo lub zog poob. Cov kauj ruam-up transformer kuj yog siv los pib lub tshuab hluav taws xob, hauv qhov cub microwave, tshuab X-rays, thiab lwm yam
Ib qho cuab yeej ntawm Maidenhead Locator System (lub npe tom qab lub nroog sab nraum London qhov chaw nws tau xeeb tub los ntawm lub rooj sib tham ntawm European VHF cov thawj coj hauv xyoo 1980), daim phiaj xwm txheej ntsuas 1 ° latitude los ntawm 2 ° longitude thiab ntsuas kwv yees li 70 × 100 mais hauv Teb chaws USA
Dej, nitrogen thiab carbon cycles. Carbon txav los ntawm huab cua thiab rov qab los ntawm cov tsiaj thiab nroj tsuag. Nitrogen txav los ntawm huab cua thiab rov qab los ntawm cov kab mob. Dej txav mus rau, saum toj, lossis hauv qab ntawm lub ntiaj teb
Juniperus ashei (Ashe juniper, post cedar, roob cedar, los yog blueberry juniper) yog ib tsob ntoo drought-tolerant evergreen, ib txwm nyob rau sab qaum teb Mexico thiab sab qab teb-central United States sab qaum teb mus rau yav qab teb Missouri; cov cheeb tsam loj tshaj plaws yog nyob rau hauv central Texas, qhov chaw dav dav tshwm sim
Lub ntsiab kev sib raug zoo lossis qhov sib txawv ntawm ob yog lub sijhawm. Kev ua haujlwm yog lub zog tsim nyog los txav ib qho khoom los ntawm ib qho mus rau lwm qhov. Xav txog kev txav lub rooj zaum ntawm koj chav nyob rau hauv koj chav noj mov. Ntawm qhov tod tes, lub zog yog tus nqi uas lub zog siv
Lub molecule txav nrawm dua, lub zog kinetic ntau nws muaj, thiab qhov ntsuas kub ntau dua. Thaum dej nyob hauv chav sov (20 ° C lossis 68 ° F), qhov nruab nrab ceev ntawm cov dej molecules hauv dej yog kwv yees li 590 m / s (≈ 1300 mph). Tab sis qhov no tsuas yog qhov nruab nrab (los yog txhais tau tias) ceev ntawm cov dej molecules
Plam. dej av nplaum siv los nplaum ob daim av nplaum ua ke.Nws tseem yog cov dej ncua kev kawm ntawm cov av nplaum hauv dej uas siv hauv plam casting. pov. yog ib lo lus siv thaum ua cov tais diav ntawm lub lauj kaub tais diav. tshoob
Q = mc∆T. Q = lub zog hluav taws xob (Joules, J) m = qhov hnyav ntawm cov khoom (kg) c = cov cua kub tshwj xeeb (units J / kg∙K) ∆ yog lub cim lub ntsiab lus 'kev hloov hauv'
SI unit of ceev iskg/m3. Dej ntawm 4 ° C yog qhov sivρ = 1000 kg/m3 = 1kg/dm3 = 1 kg/l lossis 1 g/cm3 = 1g/ml. Ceeb Toom: Tsis txhob rov sau tus lej tseeb ntawm cov lus teb.Cim ntau tus neeg tseem siv g / cm3 (gram ib cubic centimeter) lossis kg / L (kilograms ib liter) los ntsuas qhov ntom
Foob pob calorimeter
Ntxuav cov ntaub ntawv hlau Nws yog ib qho yooj yim los cais cov hlau filings los ntawm cov av: Tsuas yog co lub khob thiab tso ib lub hlau nplaum rau sab hauv qab. Cov av nyob hauv dej thiab tuaj yeem tshem tau yooj yim. Cov ntaub ntawv hlau nyob ntawm lub khob hauv qab
Qhov chaw txheeb ze: Ireland yog lub tebchaws me me nyob rau sab hnub poob ntawm Great Britain. Nws yog sab qaum teb ntawm Spain thiab nws nyob hauv dej hiav txwv Atlantic
Lub nucleus ntawm eukaryotic hlwb yog tsim los ntawm cov protein thiab deoxyribonucleic acid, los yog DNA. Lub DNA yog nruj nreem qhwv ib ncig ntawm cov protein tshwj xeeb hu ua histones; Qhov sib xyaw ntawm DNA thiab histone proteins yog hu ua chromatin. Txawm hais tias cov cell prokaryotic tsis muaj nucleus, lawv muaj DNA
Chiral Compounds WithoutStereocenters [edit] Nws kuj tseem ua tau rau ib qho molecule rau bechiral yam tsis muaj qhov tseeb chirality (stereocenters). Feem ntau ntsib cov piv txwv muaj xws li 1,1'-bi-2-naphthol (BINOL) thiab 1,3-dichloro-allene uas muaj axialchirality, thiab (E)-cyclooctene uas muaj planarchirality
Geometric isomers (tseem hu ua cis / trans isomers) yog hom stereoisomer uas tshwm sim los ntawm ob daim ntawv cog lus lossis ib lub nplhaib. Qhov yooj yim piv txwv ntawm geometric isomers arecis-2-butene thiab trans-2-butene. Nyob rau hauv txhua lub molecule, ob lub bondis ntawm carbons 2 thiab 3
Muaj ob hom tshuaj sib npaug: Homogeneous Equilibrium. Heterogeneous Equilibrium
Siv: Qhov tseem ceeb tshaj plaws ore ntawm hlau. Pigment
Kev ua haujlwm piecewise yog ib txoj haujlwm tsim los ntawm cov khoom sib txawv ntawm cov haujlwm sib txawv. Piv txwv li, peb tuaj yeem ua ib qho kev ua haujlwm f(x) qhov twg f(x) = -9 thaum -9 < x ≦ -5, f(x) = 6 thaum -5 < x ≦ -1, thiab f(x) = -7 thaum -1 <x≦ 9
Quaking Aspens feem ntau tsis meej pem nrog cov ntoo birch. Birch nto moo rau cov tawv ntoo uas tev rov qab zoo li daim ntawv; aspen bark tsis tev. Whereas aspen nplooj yog zoo kawg nkaus tiaj tus, birch nplooj yog me ntsis 'V' zoo li tus thiab ntau elongated tshaj Quaking Aspen nplooj
Ammonia. Ammonia (NH3) yog lub hauv paus rau nitrogen (N) chiv kev lag luam. Nws tuaj yeem siv ncaj qha rau hauv av raws li cov nroj tsuag cov zaub mov lossis hloov mus rau ntau hom N chiv, tab sis qhov no yuav tsum muaj kev nyab xeeb tshwj xeeb thiab kev tswj hwm kev ceev faj