phy.py

Created on February 04, 2022

638 Bytes

convertion :
  
760 mmHg = 1 atm = 101325Pa
10.3 mCe = 1 atm = 101325Pa
1 TEP = 42 GJ

1 kg à 100 km/h = 0.0001kWh

10N = 10kg.m.s**-2 = 10.10**3 g.10**2 cm.s**-2 = 10**6 g.cm.s**-2

15w =15kg.m**2 .s**-3 =15.10**3 g.(10**2cm)**2 .s**-3 = 1,5.10**8g.cm**2 .s**-3

101325Pa = 10kg.m**-1 .s-2 = 101325.10**3 g.(10**2 cm)**-1 .s**-2


Frenet  

faire la figure
              -> ->
repere -> (M, t, n)

->  ds   ->
v = -- * T
    dt

dt peut etre = 0 -> on enleve la div

->  dv   ->  v**2 ->
a = -- * T + ---- n
    dt        R

Exo 3 calcul vitesse moy 
  _    d           -
T(v) =---     avec v = vitesse moy 
       -
       v

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