Physics

2 Mfundo ya ntchito ndi mphamvu Mphamvu yosasintha Kuyenda pa ndege yopendekeka ndi kukangana - Mavuto ndi Mayankho

1. Chipika chimatsika pansi pa malo opendekera ndi kukangana. Kodi liwiro la chipikacho ndi lotani pamene chipikacho chikugunda pansi? Chiŵerengero cha kukangana kwa kinetic ndi 0.4. Kuthamanga chifukwa cha mphamvu yokoka ndi 10 m/s ².

Zodziwika:

Kutalika koyambirira (h)_o) = 6 m

Kutalika komaliza (h _t ) = 0 m

Liwiro loyambirira (v _o ) = 0 (block poyamba ili pamalo opumulira)

Koyefifiti ya kukangana kwa kinetic (μ _k ) = 0.4

Werengani zambiri

Ntchito yochitidwa mu njira za thermodynamic - mavuto ndi mayankho

1. Mpweya woyenera umapanikizidwa kuchokera ku boma 1 kupita ku boma 2 monga momwe zasonyezedwera pa graph ili pansipa. Dziwani ntchito yomwe mpweyawo wagwira.

Anakonza

Lita imodzi = 0.001 m ³

Zodziwika:

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

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

Werengani zambiri

Kugundana ndi kusunga mphamvu zamakina - zofufuzira ndi mayankho

1. Zinthu ziwiri zili ndi kulemera kofanana , m ₁ = m ₂ = 0.5 kg yotsika kuchokera kutalika komweko monga momwe zasonyezedwera pachithunzi chili pansipa. Utali wozungulira wa bwalo ndi 1/5 m. Kugundana pakati pa zinthu zonse ziwiri ndikotanuka bwino. Dziwani liwiro la chinthu chilichonse pambuyo pa kugundana. Kuthamanga chifukwa cha mphamvu yokoka ndi 10 m/s ².

Zodziwika:

Unyinji wa chinthu (m) = m₁ = m₂ = makilogalamu 0.5

Kutalika koyambirira (h ₁ ) = 1/5 m

Kutalika komaliza (h ₂ ) = 0 ( pansi pa njira )

Werengani zambiri

Momentum Impulse ndi Projectile motion - Mavuto ndi Mayankho

1. Mpira wa 0.2-kg udzalowetsedwa mu dzenje la C, monga momwe chithunzi chili pansipa chikusonyezera. Wogundayo agunda mpirawo mu sekondi 0.01 ndipo njira ya BC idayenda mu sekondi imodzi. Dziwani kukula kwa mphamvu kuti mpirawo ulowetsedwe mu dzenje la C. Kuthamanga chifukwa cha mphamvu yokoka ndi 10 m/s ².

Zodziwika:

Ngodya (θ) = 60 ^o

Kulemera kwa mpira (m) = 0.2 kg

Kuthamanga chifukwa cha mphamvu yokoka (g) = 10 m/s ²

Nthawi yopuma (Δt) = masekondi 0.01

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Kuyenda kosagwirizana kwa mzere - mavuto ndi mayankho

1.

Gome ili pamwambapa likuwonetsa deta ya zinthu zitatu zomwe zimayenda mtunda womwewo pa liwiro losalekeza.

Kodi liwiro lomaliza la chinthu P ndi liwiro loyambirira la chinthu Q ndi liti?

Werengani zambiri

Chiphunzitso cha Kinetic cha mpweya ndi lamulo loyamba la thermodynamics - mavuto ndi mayankho

1. Mpweya wabwino uli mu chidebe chokhala ndi voliyumu ya malita 4 ndipo kupanikizika kwake ndi 3 atm (1 atm = 10 ⁵ Nm ^-2 ). Mpweya wabwino umatenthedwa pa kupanikizika kosalekeza kuyambira 27 ^o C mpaka 87 ^o C. Mphamvu ya kutentha ya mpweya ndi 9 JK ^-1 . Kodi voliyumu yomaliza ya mpweya ndi kusintha kwa mphamvu yamkati ya mpweya ndi yotani?

Anakonza

Njira ya Isobaric (kupanikizika kosalekeza)

Zodziwika:

Kuchuluka koyambirira kwa mpweya (V ₁ ) = malita 4

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Kuzungulira kwa matupi olimba - mavuto ndi mayankho

Mphindi ya mphamvu

1. Mphamvu zitatu zimagwira ntchito pa mtanda wautali mamita 6, monga momwe chithunzi chili pansipa chikusonyezera. Kodi mphamvu ya ukonde yomwe imazungulira mtandawo mozungulira O ngati mzere wozungulira ndi chiyani?

Zodziwika:

Mzere wozungulira pa mfundo O.

Mphamvu 1 (F ₁ ) = F

Mtunda pakati pa mzere wa zochita wa F1 _ndi mzere wozungulira (r1 ₎ = mamita 3

Werengani zambiri

Springs motsatizana ndi motsatizana - mavuto ndi mayankho

1. Chinthu cha magalamu 160 chimamangiriridwa kumapeto kwa kasupe ndipo kusintha kwa kutalika kwa kasupe ndi masentimita 4. Kodi kusintha kwa kutalika kwa akasupe atatu olumikizidwa motsatizana ndi motsatizana ndi kotani , monga momwe chithunzi chili pansipa chikusonyezera?

Zodziwika:

Kusintha kwa kutalika kwa kasupe (Δx) = 4 cm = 0.04 m

Kulemera (m) = magalamu 160 = 0.16 kg

Kuthamanga chifukwa cha mphamvu yokoka (g) = 10 m/s ²

Werengani zambiri

Kusintha kwa kayendedwe ka kuzungulira - mavuto ndi mayankho

1. Pulley yokhala ndi nthawi ya inertia I = 2/5 MR ² ili ndi kulemera kwa 2-kg. Ngati mphindi ya mphamvu pa pulley ndi 4 Nm ndiye kuti kuthamanga kwa pulley ndi kotani? Kuthamanga chifukwa cha mphamvu yokoka ndi g = 10 ms ^-2.

Amadziwika :

Nthawi ya inertia ya pulley (I) = 2/5 MR ²

Kulemera kwa pulley (M) = 2 kg

Mphamvu ya mphindi (τ) = 4 Nm

Werengani zambiri

Mphamvu ya tinthu tating'onoting'ono - mavuto ndi mayankho

1. Chinthu A chokhala ndi kulemera kwa makilogalamu 6 ndi chinthu B chokhala ndi kulemera kwa makilogalamu 4 cholumikizidwa ndi chingwe ndikukokedwa ndi mphamvu ya F = 60 N, monga momwe zasonyezedwera pachithunzi chili pansipa. Coefficient ya kinetic friction pakati pa pansi ndi zinthu zonse ziwiri ndi 0.5 (tan θ = ¾). Kuthamanga chifukwa cha mphamvu yokoka ndi 10 m/s ² . Kodi kukula kwa mphamvu yokoka ndi kotani?

Zodziwika:

Unyinji wa chinthu A (m_A) = 6 kg

Kulemera kwa chinthu B (m _B ) = 4 kg

Mphamvu (F) = 60 Newton

Werengani zambiri