Méca 1 Flashcards

1
Q

Force

A

(unité dérivé en N)

F=ma= kg.m.s^-2

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2
Q

Energie

A

unité dérivé: J

E= 1/2mv^2 = kg.m^2.s^-2

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3
Q

température en Kelvin

A

Tk= T°C + 273,15

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4
Q

charge élémentaire

A

e= 1,6 x 10^-19 C

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5
Q

Constante des gaz parfaits

A

R= 8,314 J.K^-1.mol^-1

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6
Q

Nombre d’Avogadro

A

Na= 6,022 x 10^23 mol^-1

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7
Q

Vitesse de la lumière dans le vide

A

c= 3,00 x 10^8 m.s^-1

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8
Q

ln(axb)=

A

ln(a)+ln(b)

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9
Q

ln(a/b)=

A

ln(a)-ln(b)

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10
Q

ln(a^b)=

A

b x ln(a)

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11
Q

e^ln(a)=

A

a

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12
Q

Log(10^a)=

A

a

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13
Q

10^log(a)=

A

a

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14
Q

ln(e^a)=

A

a

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15
Q

log(a)

A

ln(a)/ln(10)

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16
Q

dérivée de cos(u)

A

-u’sin(u)

17
Q

déri de sin(u)

A

u’cos(u)

18
Q

déri ln(u)

A

u’/u

19
Q

dér e^u

A

u’e^u

20
Q

primitive de cos(x)

A

sin(x) + A

21
Q

primitive de sin(x)

A

-cos(x) + A

22
Q

primitive de 1/x

A

ln(x) + A

23
Q

développement limité :
quand x-> 0
exp(x)=

A

1 + x

24
Q

développement limité :
quand x-> 0
ln(1+x)=

A

x

25
Q

développement limité :
quand x-> 0
(1+x)^n=

A

1+nx

26
Q

1e lois de Newton

A

quand forces extérieurs se compensent -> mvmt rectiligne uniforme-> somme des forces = 0

27
Q

2e loi de Newton

A

somme des forces = m (vecteur)a