Trudng
DHSP
Tp.HCM
Khoa
vqt
rf
sE
rur
vr0rrl:
c0
Ly
THUygT
(
he
cN
)
Thdi
gian
:
90
ph0t
clu
1:
Thanh
l0p
cOng
thuc
tinh
vf
n tdc
vi
gia
tOc
trong
toq
dQ
cgc
clu
2: Thenh
l0p
ilinh
lf
bi6n
thi6n
dQng
ndng
ctia
hQ
ch6t
<ti6m
-
cdu
3: X6t
chat
didm
kh6i
ru0ng
m
chuydn
dQng
trong
mQt
m{t
phlng
oxy
dugi
t6c
dr,rng
duy
nh6t
cfra
lgc
dAy xuy0n
tim
7
=
*rrf
,
trong
OO
,tta
heng
s0 tg
l0
vi
/
li
biin
klnh
vector
nOi
tu
gOc
o d€h
vi
tri
c0a
chdt
didm.
Biel
x(0)
=a;y(0)=rr*<o>=or#O>=0.
Tlm
phuong
trlnh
chuydn
dQng
c0a
ch6t
ai6m?
-
Cflu
4: MOt
bnn
phing
ddng
chlt
hinh
vu6ng
c4nh
a,
khdi
lugng
M
co thd
quay
quanh
1
trqc
nlm
ngang
vuOng
g6c
voi
binvi
qua
1
dinhocriabdn.
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ddu,
ta
t<eo
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nOi
o
vd
khdi
tlm
c&a
bin
hgp
voi
phudng
thtng
drlng
1
goc
ao
(
goc
nh6
)
rdi
thl
nhq'
a/Tim
him
Lagrange
c'ira
h0
thdng
,
:
,,,
,.!,,,,:
,j
:,
:
b/
Tim
quy
ru{t
chuydn
dOng
c0a
ban
i
.,
,,.
;
,i
,
i!:
, I
,,,
i
,