Unitatea 2 eta 3 Flashcards

1
Q

Lana

A

F= d x Ar x cos 0 Joule

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2
Q

Potentzia

A

P = W/t aldiuneko potentzia P=F x v

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3
Q

Energia

A

W osoa = AEz
W konts= -AEp

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4
Q

Energia mekanikoaren kontserbazioa

A

Wez konts = AEm

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5
Q

indar baten momentua

A

M= F x r x sin 0

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6
Q

Inertzia momentua

A

I = mr²
Ez = 1/2 x I x w²
Gorputz batek biraketa-egoera aldatzeari aurre egiteko duen erresistentzia

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7
Q

Grabitazio unibertsalaren legea

A

F = G(m1m2)/r²
Bi gorputzen arteko grabitazio-indarra

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8
Q

Eremu grabitatorioaren intentsitatea

A

g=F/m2= Gm1/r²
Puntu batean gorputz masadun bati eragiten dion grabitazio-indarra masaren unitateko.

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9
Q

Energia Potentzial Grabitatorioa

A

(Atik Bra) Wkonts= -AEp
= Epb - Epa = G(m1m2)/rb² -G(m1m2)/ra²

Gorputz bat grabitazio-eremuan kokatzeko behar den energia, erabateko erreferentzia-puntu batetik abiatuta.

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10
Q

Potentzial grabitatorioa

A

V=Ep/m2= -Gm1/r
Wkonts= -AEp= -m(Vb-Va)

Eremuko puntu batean masaren unitateari dagozkion energia potentziala.

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11
Q

Energia mekanikoaren kontserbazioa

A

AEm= 0

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12
Q

Ihes abidaura

A

0 = Eza + Epa
Gorputz bat planetaren grabitazio-eremutik irteteko behar duen abiadura minimoa.

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13
Q

higidura orbitala

A

F=man
Gm1m2/r²=mv²/r
Gorputz batek grabitazio-indarraren eraginez beste gorputz baten inguruan deskribatzen duen higidura.

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14
Q

Higidura harmoniko sinplea ekuazioa

A

X = Asin(wt + f)
Berreskuratze-indar batek desplazamenduarekiko proportzional eta kontrako norabidean eragiten duen higidura periodikoa.

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15
Q

Pultsazioa

A

w= 2pi/T

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16
Q

HHS abiadura

A

v= Awcos(wt + f)
v max = Aw

17
Q

HHS azelerazioa

A

a = -Aw²sin(wt + f)
a max = Aw²

18
Q

HHS DINAMIKA

A

F= -kx
k=mw²

19
Q

HHS ENERGIA

A

Ez = 1/2mA²w²cos(wt + f)
Ez max = 1/2kA²
Ep= 1/2kA²sin²(wt + fi)

20
Q

Indar elastikoa

A

Fe = -kxo

21
Q

berreskurapen konstantea

A

K= mw²

22
Q

Ep eta Ez-ren erlazioa eremu grabitatorioetan

A

Ep= -2Ez (abiadura orbitala kalkulatuz)