Magulu a Gurumuda
Kuyenda kwaulere kwa kugwa - mavuto ndi mayankho
1. Mwala umagwa momasuka kuchokera kutalika kwa mamita 45. Ngati kuthamanga chifukwa cha mphamvu yokoka ndi 10 ms -2 , kodi liwiro la mwalawo likagunda pansi ndi lotani?
Zodziwika:
Kutalika (h) = mamita 45
Kuthamanga chifukwa cha mphamvu yokoka (g) = 10 m/s 2
Kufunidwa: Liwiro lomaliza la mwala ukagunda pansi (v t )
Kutumiza kutentha - mavuto ndi mayankho
1. Zitsulo ziwiri zili ndi kukula kofanana koma mitundu yosiyana. Kuchuluka kwa kutentha kwa P = kuwirikiza kawiri kuchuluka kwa kutentha kwa Q. Kodi kutentha pakati pa zitsulo ziwirizi ndi kotani, monga momwe chithunzi chili pansipa?
Zodziwika:
k Q = k
k P = 2k
Kufunidwa: Kutentha pakati pa zitsulo ziwiri
Kuyenda mozungulira - mavuto ndi mayankho
Mphungu
1. Mtanda wautali masentimita 140. Pali mphamvu zitatu zomwe zimachitika pa mtanda, F 1 = 20 N, F 2 = 10 N, ndi F 3 = 40 N yokhala ndi malangizo ndi malo monga momwe zasonyezedwera pachithunzi chili pansipa. Kodi mphamvu ya mtanda ndi chiyani chomwe chimapangitsa kuti mtanda uzizungulira pakati pa kulemera kwa mtanda?
Zodziwika:
Pakati pa misa pali pakati pa mtanda.
Magawo amagetsi - mavuto ndi mayankho
1. Point A ili pakati pa ma charge awiri. Ma charge onsewa ali ndi kukula kofanana koma chizindikiro chotsutsana ndipo amalekanitsidwa ndi mtunda wa a. Kukula kwa mphamvu yamagetsi pa point A ndi 36 N/C. Ngati point A isuntha 1/2a pafupi ndi imodzi mwa ma charge onse awiri , kodi mphamvu ya mphamvu yamagetsi pa point A ndi yotani?
Zodziwika:
Ndalama 1 (q 1 ) = +Q
Ndalama 2 (q 2 ) = -Q
Mtunda pakati pa chaji 1 ndi mfundo A (r 1A ) = ½ a
Mphamvu yamagetsi - mavuto ndi mayankho
1. Ma charge atatu monga momwe asonyezedwera pachithunzi chili pansipa . Kodi mphamvu yamagetsi yomwe imapezeka ndi charge ndi yotani? B. k = 9 x 10 9 Nm 2 C −2 , 1 μC = 10 −6 C.
Zodziwika:
qA = 10 µC = 10 x 10-6 C=10-5 Coulomb
q B = 10 µC = 10 x 10 -6 = 10 -5 Ma Coulomb
q C = 20 µC = 20 x 10 -6 = 2 x 10 -5 Coulombs
Magetsi osasinthasintha - mavuto ndi mayankho
Mphamvu yamagetsi
1. Mfundo A mu gawo lamagetsi . Kukula kwa gawo lamagetsi pa mfundo A = 0.5 NC -1 . Ngati mphamvu ya 0.25-C yayikidwa pa mfundo A, ndiye mphamvu yamagetsi yomwe imagwiritsidwa ntchito pa mphamvuyo ndi iti?
Zodziwika:
Malo amagetsi pamalo A = 0.5 NC -1
Mphamvu yamagetsi pamalo A = 0.25 C
Akufuna: Mphamvu yamagetsi
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