2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov txheej txheem uas ib qho hluav taws xob tau txais lub zog txaus los rhuav tshem ntawm lub atom hu ua ionisation. Cov txheej txheem no ua rau muaj kev tsim ntawm ob lub ntsiab lus los yog ions: cov molecule nrog tus nqi zoo, thiab cov hluav taws xob dawb nrog tus nqi tsis zoo.
Yuav ua li cas yog ob qhov khoom tsim thaum lub atom yog ionized?
Yog tias lub zog hloov pauv txaus, ionization ntawm cov txiaj ntsig atom. Lub zoo ion thiab cov electronyog li tsim tau hu ua ib khub ion.
Yuav ua li cas thaum lub atom yog ionized?
Ionization yog txheej txheem uas ions yog tsim los ntawm kev nce lossis poob ntawm ib qho hluav taws xob los ntawm atom lossis molecule. Yog hais tias ib qho atom lossis molecule tau txais ib qho hluav taws xob, nws yuav raug them tsis zoo (ib qho anion), thiab yog tias nws poob ib qho hluav taws xob, nws yuav raug them zoo (ib qho cation). Lub zog yuav poob lossis tau txais los ntawm kev tsim cov ion.
Yuav ua li cas ionize ntau tshaj?
Alpha particles muaj kwv yees li plaub npaug ntawm qhov loj ntawm proton lossis neutron thiab kwv yees li ~ 8,000 npaug ntawm qhov loj ntawm beta particle (Daim duab 5.4. 1). Vim tias qhov loj ntawm cov alpha particle, nws muaj lub zog ionizing siab tshaj plaws thiab muaj peev xwm ua rau cov ntaub so ntswg puas.
7 hom hluav taws xob yog dab tsi?
Cov electromagnetic spectrum suav nrog, los ntawm qhov ntev tshaj plaws wavelength mus rau luv tshaj: xov tooj cua, microwaves,infrared, optical, ultraviolet, X-rays, thiab gamma-rays. Mus ncig saib cov electromagnetic spectrum, ua raws li cov kev txuas hauv qab no!
Pom zoo:
Los ntawm cov khoom tsim thaum lub sij hawm tsim cov bakelite yog?
Nyob rau hauv rooj plaub ntawm bakelite phenol thiab formaldehyde condense los tsim cov monomer muab H2O raws li cov khoom lag luam. Bakelite tseem hu ua co-polymer. Cov tshuaj tiv thaiv: Phenol reacts nrog formaldehyde los tsim o-Hydroxy methyl phenol.
Lub iav twg yog lub iav tsav thiab qhov twg yog lub iav tsav?
Daim ntawv yooj yim tshaj plaws yog ob lub iav log nrog cov hniav meshing. Nyob rau hauv tag nrho cov gearbox ib lub iav yuav powered. Qhov no hu ua lub iav tsav thiab lwm lub iavyog hu ua lub iav tsav. Lub iav twg yog lub iav tsav? Gear trains with two gears Qhov yooj yim piv txwv ntawm lub tsheb ciav hlau muaj ob lub zog.
Dab tsi yog qhov kev tsim khoom tsim kho dua tshiab?
Ib qho kev tsim khoom tsim kho dua tshiab yog ib qho tsim los ntawm qhov pib rau kev hloov pauv sai hauv nws cov qauv, nrog rau nws cov khoom siv kho vajtse thiab software, txhawm rau kho sai sai nws cov peev txheej tsim khoom thiab kev ua haujlwm nyob rau hauv ib feem tsev neeg hauv kev teb rau kev lag luam tam sim ntawd.
Puas yog cov nroj tsuag carnivorous yog cov tsim khoom lossis cov neeg siv khoom?
As producers, cov nroj tsuag tsim lub hauv paus ntawm yuav luag txhua cov khoom noj hauv ntiaj teb. Carnivorous nroj tsuag zoo li "tig rooj" thaum lawv ua raws li cov neeg siv khoom, gobbling kab, qav, thiab cov tsiaj me me. Puas yog Venus flytrap yog tus neeg siv khoom thiab tsim khoom?
Thaum muag ib lub tsev dab tsi yog cov khoom siv thiab khoom siv?
Fixtures yog cov khoom uas txuas nrog rau cov khoom; tsau, yog koj yuav. Fittings yog cov khoom uas tsis txuas nrog cov cuab yeej, tshwj tsis yog los ntawm cov ntiv tes xoos (lossis ntau dua, cov ntsia hlau). Cov khoom siv thiab khoom siv dab tsi suav nrog hauv tsev muag?
