Amanethiwekhi eGurumuda
I-diffraction gratings - izinkinga nezixazululo
I-1. A ukugaya equkethe izimbobo ezingu-4000 ngesentimitha ikhanyiswa nge i-monochromatic ukukhanya futhi kukhiqiza umugqa okhanyayo we-oda lesibili nge-engeli engu-30°. Kuyini ubude bamaza kokukhanya okusetshenzisiwe? (1 Å = 10-10 m)
Kwaziwa:
Ibanga eliphakathi kwezikhala (d) = 1 / (4000 izikhala / cm) = 0.00025 cm = 2.5 x 10-4 cm = 2.5 x 10-6 amamitha
I-oda (n) = 2
Ngaphandle kwama-30o = 0.5
1 Å = 10-10 m
2 Isimiso somsebenzi namandla Amandla angewona awokugcina Ukunyakaza endizeni ethambekele ekungqubuzaneni - Izinkinga Nezixazululo
1. Ibhulokhi liyashelela phansi indiza ethambekele ngokungqubuzana. Iyini ibhloko velocity lapho ibhloko lishaya phansi? I-coefficient ye ukungqubuzana kwe-kinetic kungu-0.4. Ukusheshisa ngenxa yamandla adonsela phansi kungu-10 m/s2.
Kwaziwa:
Ukuphakama kokuqala (h)o= 6m
Ukuphakama kokugcina (ht= 0m
Isivinini sokuqala (v)o= = 0 (vimba ekuqaleni lapho uphumule)
I-coefficient yokungqubuzana kwe-kinetic (μ)k= = 0.4
Umsebenzi owenziwe ezinqubweni ze-thermodynamic - izinkinga nezixazululo
1. U-An igesi ekahle kucindezelwe kusuka esimweni 1 kuya esimweni 2 njengoba kuboniswe kugrafu engezansi. Thola ukuthi umsebenzi kwenziwa yigesi.
Isixazululo
Ilitha eli-1 = 0.001 m3
Kwaziwa:
ingcindezi 1 (P)1) = 10 kPa = 10,000 Pa = 10,000 N/m2
Ingcindezi 2 (P)2) = 20 kPa = 20,000 Pa = 20,000 N/m2
Ukushayisana nokulondolozwa kwamandla emishini - ama-probe nezixazululo
1. Izinto ezimbili zifana Mass, m1 = m2 = 0.5 kg ehlile kusukela ekuphakameni okufanayo njengoba kuboniswe esithombeni esingezansi. Irediyasi yendilinga ingu-1/5 m. ukushayisana phakathi kwezinto zombili kunwebeka ngokuphelele. Thola ukuthi velocity kwento ngayinye ngemva kokushayisana. Ukusheshisa ngenxa yamandla adonsela phansi ingu-10 m/s2.
Kwaziwa:
Isisindo sento (m) = m1 = m2 = 0.5kg
Ukuphakama kokuqala (h)1) = 1/5 m
Ukuphakama kokugcina (h2= = 0 (isisekelo sendlela)
Ukunyakaza kwe-Momentum Impulse kanye ne-Projectile – Izinkinga Nezixazululo
1. Ibhola elingamakhilogremu angu-0.2 lizofakwa emgodini C, njengoba kuboniswe esithombeni esingezansi. Umshayi ushaya ibhola ngomzuzwana ongu-0.01 bese indlela ye-BC ihambe ngomzuzwana owodwa. Thola ubukhulu bamandla ukuze ibhola lifakwe emgodini C. Ukusheshisa ngenxa yamandla adonsela phansi ingu-10 m/s2.
Kwaziwa:
I-engeli (θ) = 60o
Imisa ibhola (m) = 0.2 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2
Isikhawu sesikhathi (Δt) = 0.01 imizuzwana
Ukunyakaza okuqondile okungalingani - izinkinga nezixazululo
1.
Ithebula elingenhla libonisa idatha yezinto ezintathu ezihamba ibanga elifanayo ku- ukusheshisa okuqhubekayo.
Iyini ijubane lokugcina lento P kanye nejubane lokuqala lento Q?
Ithiyori ye-kinetic yamagesi kanye nomthetho wokuqala we-thermodynamics - izinkinga nezixazululo
1. Amagesi afanele asesitsheni esinomthamo wamalitha ama-4 kanti umfutho waso ungama-atm ama-3 (1 atm = 105 I-Nm-2). I amagesi afanele ukushisa ngokucindezela okungaguquki kusuka ku-27oC kuya ku-87oC. Isigungu umthamo wokushisa igesi ingu-9 JK-1. Uyini umthamo wokugcina wamagesi kanye noshintsho lwamandla angaphakathi amagesi?
Isixazululo
Inqubo ye-Isobaric (ingcindezi eqhubekayo)
Kwaziwa:
Umthamo wokuqala wegesi (V)1) = amalitha ama-4
Ukujikeleza kwemizimba eqinile - izinkinga nezixazululo
I-mumzuzu wamandla
1. Amandla amathathu asebenza emshayweni onobude obungamamitha ayi-6, njengoba kuboniswe esithombeni esingezansi. Kuyini i-torque ephelele ijikeleza umsebe ozungeze iphuzu O njenge-axis yokujikeleza?
Kwaziwa:
I-axis yokujikeleza endaweni ethi O.
Amandla 1 (F)1) = F
Ibanga eliphakathi komugqa wesenzo sika-F1 nge-axis yokujikeleza (r1) = amamitha angu-3
Izinkinga nezixazululo ze-Springs ezilandelanayo nezihambisanayo
1. Into engamagremu angu-160 inamathela kolunye uhlangothi lwesipilingi kanti ushintsho lobude besipilingi luyi-4 cm. Luyini ushintsho lobude bezintathu iziphethu ezixhunywe ngochungechunge nangokuhambisana, njengoba kuboniswe esithombeni esingezansi?
Kwaziwa:
Ushintsho lobude besiphethu (Δx) = 4 cm = 0.04 m
Imisa (m) = amagremu angu-160 = 0.16 kg
Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s2
Amandla okunyakaza okujikelezayo - izinkinga nezixazululo
1. I-pulley ene- umzuzu we-inertia I = 2/5 MR2 inesisindo esingu-2 kg. Uma umzuzu wamandla Ku-pulley ingu-4 Nm, kuyini ukusheshisa okuqondile kwe-pulley. Ukusheshisa ngenxa yamandla adonsela phansi kungu-g = 10 ms-2.
Kuyaziwa :
Isikhathi sokungahlali kahle kwe-pulley (I) = 2/5 MR2
Imisa we-pulley (M) = 2 kg
Isikhathi samandla (τ) = 4 Nm