STE 3 2015/16 - MdF - Exam n°1 1 Montgolfière 2 Autocuiseur

R= 10 m
m=
ρ(T) = ρ0T0
T
T T0= 273K ρ0= 1.29kg.m−3
p0
p0
p0D d
patm g
p0
m
p0

D= 30cm d= 2mm g= 9,81m.s−2p0= 1,8bar patm = 1bar
u=u
v=a|cos (ωt)| asin (ωt)
a ω
x
t= 0 (x0, y0)
u v
t u v
0≤t≤π
2ω
π
2ω≤t≤3π 2ω
3π
2ω≤t≤2π ω