Marangrang a Gurumuda
Li-grating tsa diffraction - mathata le litharollo
1. A sekerete e nang le masoba a 4000 ka sentimetara e bonesitsoe ka monochromatic e bonesa mme e hlahisa mola o kganyang wa tatellano ya bobedi ka sekhutlo sa 30°. wavelength ea leseli le sebelisitsoeng? (1 Å = 10-10 m)
Tse tsejoang:
Sebaka se pakeng tsa likoti (d) = 1 / (likoti tse 4000 / cm) = 0.00025 cm = 2.5 x 10-4 cm = 2.5 x 10-6 limithara tse
Tatelano (n) = 2
Sebe sa 30o = 0.5
1 Å = 10-10 m
2 Molao-motheo oa matla a mosebetsi Matla a sa bolokeheng Motsamao sefofaneng se sekametseng se nang le khohlano - Mathata le Litharollo
1. Boloko bo thella tlase sefofane se sekametseng ka khohlano. Boloko ke eng Velocity ha boloko bo otla fatshe? Palo ya khohlano ea kinetic ke 0.4. Ho potlaka ka lebaka la matla a khoheli ke 10 m/s2.
Tse tsejoang:
Bolelele ba qalong (h)o) = 6 m
Bolelele ba ho qetela (ht) = 0 m
Lebelo la pele (v)o= 0 (thibela qalong ha o phomotse)
Khokahano ea kinetic ea friction (μ)k= 0.4
Mosebetsi o entsoeng lits'ebetsong tsa thermodynamic - mathata le litharollo
1 selemo khase e loketseng e hatelloa ho tloha boemong ba 1 ho ea boemong ba 2 joalo ka ha ho bontšitsoe kerafong e ka tlase. Fumana mosebetsi e etsoa ke khase.
tharollo
Litara e le 1 = 0.001 m3
Tse tsejoang:
tsotellehe khatello 1 (P1) = 10 kPa = 10,000 Pa = 10,000 N/m2
Khatello ea 2 (P)2) = 20 kPa = 20,000 Pa = 20,000 N/m2
Ho thulana le paballo ea matla a mechini - li-probe le litharollo
1. Lintho tse peli li na le ntho e tšoanang boima, m '1 = m2 = 0.5 kg e theohile ho tloha bophahamong bo lekanang le bo bontšitsoeng setšoantšong se ka tlase. Radius ea selikalikoe ke 1/5 m. Ho thulana pakeng tsa lintho ka bobeli ho tenyetseha ka ho phethahetseng. Fumana hore na Velocity ea ntho e 'ngoe le e 'ngoe ka mor'a ho thulana. Ho potlakisa ka baka la matla a khoheli ke 10 m/s2.
Tse tsejoang:
Boima ba ntho (m) = m1 = m2 = 0.5 kg
Bolelele ba qalong (h)1) = 1/5 m
Bolelele ba ho qetela (h2= 0 (motheo oa tsela)
Motsamao oa Momentum Impulse le Projectile - Mathata le Litharollo
1. Bolo ea 0.2-kg e tla kenngoa ka har'a lesoba la C, joalo ka ha ho bontšitsoe setšoantšong se ka tlase. Motho ea otlang bolo o otla ka motsotsoana oa 0.01 'me tsela ea BC e tsamaile ka motsotsoana o le mong. Fumana boholo ba matla e le hore bolo e ka kenngoa ka har'a lesoba la C. Ho potlakisa ka baka la matla a khoheli ke 10 m/s2.
Tse tsejoang:
Sekhutlo (θ) = 60o
Boholo ea bolo (m) = 0.2 kg
Ho potlaka ka lebaka la matla a khoheli (g) = 10 m/s2
Nako ea ho arohana (Δt) = metsotsoana e 0.01
Motsamao o sa lekanang oa mola o otlolohileng - mathata le litharollo
1.
Tafole e kaholimo e bonts'a lintlha tsa lintho tse tharo tse tsamaeang sebaka se tšoanang ho ho potlaka ho sa khaotseng.
Lebelo la ho qetela la ntho P le lebelo la pele la ntho Q ke lefe?
Khopolo-taba ea Kinetic ea likhase le molao oa pele oa thermodynamics - mathata le litharollo
1. Likhase tse ntle li ka har'a setshelo se nang le bophahamo ba lilithara tse 4 'me khatello ea sona ke 3 atm (1 atm = 105 Nm-2). The likhase tse loketseng e futhumatsoa ka khatello e sa khaotseng ho tloha ho 27oC ho 87oC. The matla a mocheso ea khase ke 9 JK-1Bophahamo ba ho qetela ba likhase le phetoho ea matla a ka hare a likhase ke bokae?
tharollo
Ts'ebetso ea Isobaric (khatello e sa khaotseng)
Tse tsejoang:
Bophahamo ba pele ba khase (V)1) = lilithara tse 4
Ho potoloha ha 'mele e tiileng - mathata le litharollo
Mmotsotso oa matla
1. Matla a mararo a sebetsa hodima lehlaseli le bolelele ba limithara tse 6, joalo ka ha ho bontšitsoe setšoantšong se ka tlase. torque ea letlooa e potoloha lehlaseli ho potoloha ntlha O e le mothapo oa potoloho?
Tse tsejoang:
Mothapo oa potoloho ntlheng ea O.
Matla a 1 (F)1) = F
Sebaka se pakeng tsa mola oa ketso oa F1 ka mothapo oa potoloho (r)1) = limithara tse 3
Li-spring tse latellanang le tse bapileng - mathata le litharollo
1. Ntho ea boima ba ligrama tse 160 e khomareloa pheletsong e 'ngoe ea selemo 'me phetoho ea bolelele ba selemo ke 4 cm. Phetoho ea bolelele ba tse tharo ke eng? liliba tse hokahaneng ka tatellano le ka ho bapa, joalo ka ha ho bontšitsoe setšoantšong se ka tlase?
Tse tsejoang:
Phetoho ea bolelele ba selemo (Δx) = 4 cm = 0.04 m
Boholo (m) = digrama tse 160 = 0.16 kg
Ho potlakisa ka baka la matla a khoheli (g) = 10 m/s2
Matla a metsamao ea potoloho - mathata le litharollo
1. Pulley e nang le motsotso oa inertia Ke = 2/5 MR2 e na le boima ba 2 kg. Haeba motsotso wa matla ho pulley ke 4 Nm ebe lebelo le otlolohileng la pulley ke lefe. Ho potlaka ka lebaka la matla a khoheli ke g = 10 ms-2.
Tsejoa :
Motsotso oa ho se sebetse ha pulley (I) = 2/5 MR2
Boholo ea pulley (M) = 2 kg
Motsotso oa matla (τ) = 4 Nm