Lingaliro la Mafunde a Magetsi

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Ubale Pakati pa Kulemera ndi Kunenepa

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Momwe Mungawerengere Mphamvu Zotheka

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Kufotokozera kwa Chiphunzitso cha Einstein cha Kugwirizana

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Equation ya mphamvu yokoka

Mafunso atatu okhudza Gravity equation

1. Tinthu titatu tating'onoting'ono tolemera makilogalamu 1 tili pamalo otsetsereka a makona atatu ofanana omwe mbali zake ndi zazitali mamita 1. Kodi mphamvu yokoka yomwe tinthu tating'onoting'ono timapezeka mu G ndi yaikulu bwanji?

AnakonzaEquation ya mphamvu yokoka 1

Kukula kwa mphamvu yokoka yomwe imawonedwa ndi chimodzi mwa tinthu tating'onoting'ono.

F 12 = G (m 1 )(m 2 ) / r 2 = G (1)(1) / 1 2 = G/1 = G

F 13 = G (m 1 )(m 3 ) / r 2 = G (1)(1) / 1 2 = G/1 = G

Mphamvu yokoka yomwe imabwera pambuyo pake pa mfundo 1:

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Equation yamagetsi

Mafunso atatu okhudza ma equation amagetsi

1. Mpira woyendetsa womwe uli ndi utali wa 10 cm uli ndi mphamvu yamagetsi ya 500 μC. Mapointi A, B, ndi C ali pamzere ndi pakati pa mpirawo pa mtunda wa 12 cm, 10 cm ndi 8 cm motsatana kuchokera pakati pa mpirawo. Werengani mphamvu yamagetsi pa mapointi A, B, ndi C!

Amadziwika:Chiyerekezo cha munda wamagetsi 1

Utali wa mpira woyendetsa (R) = 10 cm = 0.1 m

Mphamvu yamagetsi (q) = 500 μC = 500 x 10 -6 C

r A = 12 cm = 0,12 m

r B = 10 cm = 0,1 m

r C = 8 cm = 0,08 m

Coulomb yosasintha (k) = 9 x 10 9

Kufunidwa: Mphamvu ya magetsi pamalo A (E A ), pamalo B (E B ) ndi pamalo C (E C )

yankho;

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Equation yokhazikika ya masika

Mafunso atatu okhudza equation yokhazikika ya Spring

1. Kasupe wopangidwa ndi free suspension ali ndi kutalika kwa 10 cm. Kumapeto kwa free suspension, kulemera kwa magalamu 200 kumapachikidwa kotero kuti kutalika kwa spring kumakhala 11 cm. Ngati g = 10 m/s 2 , kodi mphamvu ya spring ndi yotani?

Zodziwika:

Kutalika koyambirira kwa kasupe (y 1 ) = 10 cm = 0.10 m

Kutalika komaliza kwa kasupe (y 2 ) = 11 cm = 0.11 m

Kusintha kwa kutalika kwa masika (Δy) = 0.11 – 0.10 = 0.01 mamita

Kulemera kwa katundu (m) = 200 magalamu = 0.2 kg

Kulemera kwa katundu (w) = mg = (0,2)(10) = 2 Newtons

Kufunidwa: Chokhazikika cha masika (k)

yankho;

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