I-physics

2 Isimiso somsebenzi namandla Amandla angewona awokugcina Ukunyakaza endizeni ethambekele ekungqubuzaneni - Izinkinga Nezixazululo

1. Ibhulokhi lishelela phansi endizeni ethambekele ngokungqubuzana. Liyini ijubane lebhulokhi uma ibhulokhi lishaya phansi? I-coefficient ye -kinetic friction ingu-0.4. Ukusheshisa ngenxa yamandla adonsela phansi kungu-10 m/s ².

Kwaziwa:

Ukuphakama kokuqala (h)_o= 6m

Ukuphakama kokugcina (h _t ) = 0 m

Isivinini sokuqala (v _o ) = 0 (ibhulokhi ekuqaleni lapho iphumule)

I-coefficient yokungqubuzana kwe-kinetic (μ _k ) = 0.4

Funda kabanzi

Umsebenzi owenziwe ezinqubweni ze-thermodynamic - izinkinga nezixazululo

1. Igesi efanelekile icindezelwa kusukela esimweni 1 kuya esimweni 2 njengoba kuboniswe kugrafu engezansi. Thola umsebenzi owenziwe yigesi.

Isixazululo

Ilitha eli-1 = 0.001 m ³

Kwaziwa:

Ingcindezi 1 (P ₁ ) = 10 kPa = 10,000 Pa = 10,000 N/m ²

Ingcindezi 2 (P ₂ ) = 20 kPa = 20,000 Pa = 20,000 N/m ²

Funda kabanzi

Ukushayisana nokulondolozwa kwamandla emishini - ama-probe nezixazululo

1. Izinto ezimbili zinesisindo esifanayo , m ₁ = m ₂ = 0.5 kg eziwile zisuka ekuphakameni okufanayo njengoba kuboniswe esithombeni esingezansi. Irediyasi yendilinga ingu-1/5 m. Ukushayisana phakathi kwezinto zombili kunwebeka ngokuphelele. Thola ijubane lento ngayinye ngemva kokushayisana. Ukusheshisa ngenxa yamandla adonsela phansi kungu-10 m/s ².

Kwaziwa:

Isisindo sento (m) = m₁ = m₂ = 0.5kg

Ukuphakama kokuqala (h ₁ ) = 1/5 m

Ukuphakama kokugcina (h ₂ ) = 0 ( isisekelo sendlela )

Funda kabanzi

Ukunyakaza kwe-Momentum Impulse kanye ne-Projectile – Izinkinga Nezixazululo

1. Ibhola elingu-0.2 kg lizofakwa emgodini C, njengoba kuboniswe esithombeni esingezansi. Umshayi ushaya ibhola ngomzuzwana ongu-0.01 bese indlela ye-BC ihambe ngomzuzwana o-1. Thola ubukhulu bamandla ukuze ibhola lifakwe emgodini C. Ukusheshisa ngenxa yamandla adonsela phansi kungu-10 m/s ².

Kwaziwa:

I-engeli (θ) = 60 ^o

Isisindo sebhola (m) = 0.2 kg

Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s ²

Isikhawu sesikhathi (Δt) = 0.01 imizuzwana

Funda kabanzi

Ukunyakaza okuqondile okungalingani - izinkinga nezixazululo

1.

Ithebula elingenhla libonisa idatha yezinto ezintathu ezihamba ibanga elifanayo ngokusheshisa okuqhubekayo.

Iyini ijubane lokugcina lento P kanye nejubane lokuqala lento Q?

Funda kabanzi

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 = 10 ⁵ Nm ^-2 ). Amagesi afanele ashiswa ngomfutho ongaguquki kusukela ku-27 ^o C kuya ku-87 ^o C. Umthamo wokushisa wegesi ungama-9 JK ^-1 . Iyini ivolumu yokugcina yamagesi kanye noshintsho lwamandla angaphakathi amagesi?

Isixazululo

Inqubo ye-Isobaric (ingcindezi eqhubekayo)

Kwaziwa:

Umthamo wokuqala wegesi (V ₁ ) = amalitha angu-4

Funda kabanzi

Ukujikeleza kwemizimba eqinile - izinkinga nezixazululo

Isikhathi samandla

1. Amandla amathathu asebenza emshayweni onobude obungamamitha ayi-6, njengoba kuboniswe esithombeni esingezansi. Iyini i- torque enetha ejikeleza umshayweni mayelana nephuzu O njenge-axis yokujikeleza?

Kwaziwa:

I-axis yokujikeleza endaweni ethi O.

Amandla 1 (F ₁ ) = F

Ibanga eliphakathi komugqa wesenzo sika-F ₁ ne-axis yokujikeleza (r ₁ ) = amamitha angu-3

Funda kabanzi

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 bezipilingi ezintathu ezixhunywe ngochungechunge kanye nokuhambisana , njengoba kuboniswe esithombeni esingezansi?

Kwaziwa:

Ushintsho lobude besiphethu (Δx) = 4 cm = 0.04 m

Isisindo (m) = amagremu angu-160 = 0.16 kg

Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s ²

Funda kabanzi

Amandla okunyakaza okujikelezayo - izinkinga nezixazululo

1. I-pulley enesikhathi sokungangeni I = 2/5 MR ² inesisindo esingu-2-kg. Uma isikhathi samandla ku-pulley singu-4 Nm, kusho ukuthini ukusheshisa okuqondile kwe-pulley. Ukusheshisa ngenxa yamandla adonsela phansi kungu-g = 10 ms ^-2.

Kuyaziwa :

Isikhathi sokungaqhubeki kwe-pulley (I) = 2/5 MR ²

Isisindo se -pulley (M) = 2 kg

Isikhathi samandla (τ) = 4 Nm

Funda kabanzi

Amandla ezinhlayiya - izinkinga nezixazululo

1. Into A enesisindo esingamakhilogremu angu-6 kanye nento B enesisindo esingamakhilogremu angu-4 exhunywe ngentambo futhi idonswe ngamandla angama-F = 60 N, njengoba kuboniswe esithombeni esingezansi. I-coefficient yokungqubuzana kwe-kinetic phakathi kwephansi nezinto zombili ingu-0.5 (tan θ = ¾). Ukusheshisa ngenxa yamandla adonsela phansi kungu-10 m/s ² . Ubukhulu bamandla okucindezela buyini?

Kwaziwa:

Isisindo sento A (m_A) = 6 kg

Isisindo sento B (m _B ) = 4 kg

Amandla (F) = 60 Newton

Funda kabanzi