wyklady fizyka


( )
ńł
ł1 i = j
ł
ij a"
ł
ół0 i = j

"
a = aięi = aięi
i=1
ńł
ł
ł1
ł
ł
ł
ł
ijk
ł-1
ł
ł
ł
ł
ół0
a b = aibi, ęięj = ij
a b = ijkęiajbk
a b c = ijkęiajklmękblcm = ęibi ajcj - ęici ajbj
c
b (ac)
a b
( )
a b c = (a c) b - a b c
W ektory : a = (a1, a2, a3) , b = (b1, b2, b3)
a + b = (a1 + b1, a2 + b2, a3 + b3)
a - b = (a1 - b1, a2 - b2, a3 - b3)
a b = |a| | b|cosą = a1b1 + a2b2 + a3b3
b
a b = - b a
x w ę
Ć
AAAA a b = Ć
a1 a2 a3 = x (a2b3 - a3b2) + w (a3b1 - a1b3) + ę (a1b2 - a2b1)
b1 b2 b3
AAAA |a b| = |a| | b| sin ą =
a1 a2 a3
AAAA a b c =
b1 b2 b3 =
a, b, c
c1 c2 c3
r
dr
v a" a" Y
dt
"r
v =
"t
dv d2r
Ł
a = = v = = r
dt dt2
"v
a =
"t
r = (x, y) - (x, w )
Ć
r = xx + yw
Ć
ńł
łv = 
ł
x
dr d
v = = (xx + yw) = x + Źw = (, Ź)
Ć Ć
dt dt ł
ółvy = Ź
ńł
ła = ć
ł
x
dv d
a = = (x + Źw) = (ć, )
Ć
ł
dt dt
ółay =
r = rnr + 0n = (r, 0)
Ć Ć
ńł ńł
łx = r cos łr = x2 + y2
ł ł
ł
óły = r sin  ł = y
ółtg
x
d
v = Y = (r r) = Yr + rr
Ł
dt
r =?
Ł
"
"
"ur d
r = lim =  = 
Ł Ł
"t dt
"ur = | r | "
=1
v = Yr + r = (Y, r)
Ł Ł
vr = Y, v = r ( vl = r)
Ł
2 2
v = vr + v = Y2 + r22
Ł
d
Ł
a = v = (Yr + r) = rr + Yr + Y + r + r
Ł Ł Ł Ł Ł
dt
=1
r =  "u = |  | "
Ł Ł
"u
 = lim = -r
Ł Ł
"t
a = rr + Y + Y + r - r2r =
Ł Ł Ł
= (r - r2)r + (r + 2Y)
Ł Ł
ńł
ła = r - r2 ( )
ł
Ł
r
ł
óła = r + 2Y ( )
Ł
a = a2 + a2
r 
" ad = r2
ad =  ( r ) 
" ac = 2wv
ac = 2 v acĄ"v
v = vt + 0 n = vt
dv
a = = vt + v t = vt + annu
Ł Ł Ł Ć
dt
n
at = v
Ł
v2 v2
an = !  =
 au
v = at,  = ct
v = const, a = 0, s = v t
a = const,
dv
v t
= a ! dV = a dt ! v - v0 = at ! v = v0 + at
v0 0
dt
S
v0 + (v0 + at) at2
S = t = v0t +
2 2
ds
s t
= v = v0 + at ds = (v0 + at)dt
0 0
dt
gt2 2h
h = ! t =
2 g
"
vk = gt = 2gh
v0
v = v0 - gtw ! tw =
g
2
gt2 v0
w
h = v0tw - =
2 2g
gt2 2h
h = ! t =
2 g
2h
d = v0t = v0
g
2 2 2
v2 = v0 + vy = v0 + (gt)2
2
v2 = v0 + 2gh
vy
tgą =
v0
vy = v0y - gtw = 0
voy v0 sin ą
tw = =
g g
tc = 2tw
2
2v0 sin ą cos ą
d = v0xtc =
g
2
v0 sin(2ą)
d =
g
d(ą) = d(90ć% - ą)
2 2
gt2 gv0 sin2 ą v0 sin2 ą
w
h = = =
2 2g2 2g
ńł ńł
łx = v0xt łdx = v0x
ł ł
x
dt
t =
ł vox ół
łdy
óły = v0yt - gt2
= v0y - gt
2 dt
x g x2
y = v0y - !
2
v0x 2 v0x
dvy v0y gx d
= 0 - = 0 x =
2
dx vox vox 2
2
d 2v0xvoĆ v0 sin 2ą
v0xv0y = g ! d = =
2 g g
dr
s = rĆ v =
dt
ds d(rĆ) dĆ
v = = = r = r
dt dt dt
v =  r
dv d d dr
a = = ( r) = r + 
dt dt dt dt
v
d
a = r +  v =  r +  v
dt
ad

ad =  v =  ( r) = ( r)  - ( ) r
=0 Ą"r
v2
ad = -2r = - r
Ć
r
2Ą
 = = 2Ąf
T

T
f
t2
 = 0t +  = 0t + t
2
v2
as = r, ad = 2r =
r

dr dr
v = = r = x ę1 + y ę2 + z ę3
dt dt
dx dy dz
v = ę1 + ę2 + ę3
dt dt dt
dę1
= x =  ę1 (v =  r)
dt
ł ł
dr
łx ę1 + y ę2 + z ę3 łł
= v + 
dt
=r
v = v +  r
v = 0 v = r (r = cost)
d d
= + 
dt dt
v = v +  r
dv
a =
dt
dv d
a = = (v +  r ) +  (v +  r ) =
dt dt
dv dr
= +  +  v +  ( r ) =
dt dt
(r)-2r
= a + 2 v +  ( r )
Ą"r Ą" 
a = a + 2 v - 2r
ac = 2 v
ad =  ( r )
F = ma
dv m dv dp
a = F = =
dt dt dt
dp
F =
dt
F dt = dp
dm
=
dt
F
dp d dm dv
F = = (mv) = v +m
dt dt dt dt
=
m = m0 + t
dv
F = (m0 + t) + v
dt
dv
F - v = (m0 + t) +
dt
dv dt dv dt
v t
= =
0 0
F - v m0 + t F - v m0 + t
1 1
- ln(F - v)|v = ln(m0 + t)|t
0 0

F - v m0 + t
-ln = ln
F m0
F m0 + t
=
F - v m0
F m0 = F m0 + tF - m0v - 2vt
(m0 + t)v = F t
F t
v =
m0 + t
dt
m = m0 - t
F dt F
= dv ! v = - ln(m0 - t)|t
0
m - t
F m0
v = ln
m0 - t
ńł
łQ - N = m2a
ł
2
ł
ółN - Q1 = m1a
m2 - m1
Q2 - Q1 = (m1 + m2)a ! a = g
m1 + m2
-m2 + m1m2 + m2 + m1m2 2m1m2
1 1
N = m1a + Q1 = g = g
m1 + m2 m1 + m2
4m1m2
2N = g
m1 + m2
g = 2N
4m1m2
=
m1 + m2
0 d" T d" fsN
Tk = fkN
fk d" fs
S S au

a = a + au + 2 v +  ( r )
ma = F
m [a + au + 2 v +  ( r )] = F
ma = F -mak -2m v -m ( r )
Fc Fod

d
ma = F - mak - m r - 2m v - m ( r )
dt
ma = F + FB
FB
v = - r
Fc = -2m v = -2m (- r ) = 2m ( r )
Fod = -m ( r )
F = Fc - Fod = 2m ( r ) -  ( r ) =  ( r )

FC = -2m v = 2mv 
"
"
n =  sin , t = cos
Fc = 2mv  = 2mv n
n
2Ą 2Ą
T = = H"
n  sin 
"
m = 70 v = 6, 5 ! Fc <" 1, 5 10-2
m = 1, 5 v = 100 ! Fc <" 5
<"
"
"
"
" t
W = F s = F s cos ą
B
WAB = F (s) ds
A
" F (s)
"
" FĄ"
dr = d r
dW = F (d r) = (d r) F = d (r F )
F
dv
F = m a = m
dt
B tB tB tB
dv
WAB = F ds = F vdt = m vdt = m vdv =
dt
A tA tA tA
vB
2 2
mv2 mvB mvA
= = -
2 2 2
vA
mv2
2
mv2 p2
Ek = =
2 2m
WAB = Ek(B) - Ek(A)
B hB
WAB = F ds = mg dh = mg(hB - hA) = mgh
A hA
h
Ep = mgh
F = kx
xB
B B B
kx2
WAB = F ds = F dx = kxdx =
2
A A A
xA
kx2 kx2
B A
WAB = -
2 2
kx2
Eps =
2
dW F ds Md
P = = = F v P = = M
dt dt dt
WAB F F
r r
Ep(r) = - F dr + Ep(r0) = - F dr + const
r0 r0
dEp = -F dr = -(Fxdx + Fydy + Fzdz)
"Ep "Ep "Ep
Fx = - , Fy = - , Fz = -
"x "y "z
" " "
" a" ( , , )
"x "y "z
"Ep "Ep "Ep
F = -"Ep = -( , , ) a" - Ep
"x "y "z
(Ek + Ep = const)
dp dp
F = F = 0 ! = 0 ! p = const
dt dt
"
"
t
t + "t
M v = (M - "m)(v + "v) + "m(v - u)
M v = M v + M "v - v "m - "m "v + v "m - u "m
M "v = u "m "m = "t
M = M0 - t
M"v = u "t
"v
M = u ! Fc = Ma = u = const
"t
=a
dv
(M0 - t) = u
dt
dt dv
= u
M0 - t u
t v
-dt dv
- =
M0 - t u
0 0
t v
v
- ln(M0 - t) =
0 u 0
M0 M0
v = u ln = u ln
M0 - t M
m1r1 + m2r2 + . . . miri
RCM = =
m1 + m2 + . . . mi
mivi pi
VCM = =
mi mi
pi = mi VCM = MC VCM
piCM = 0
M = r F
L = r p
dL
=?
dt
dL d dr dp
= (r p) = p +r
dt dt dt dt
=0
dr
p = v p = v (mv) = 0
dt
dL dp
= r = r F = M
dt dt
dL
= M
dt
dL
M = 0 ! = 0 ! L = const
dt
L = r p, p = mv = m r
L = mr ( r)
A (B C) = B(A C) - C(A B)
L = m[(r2) - r(r)]
2
L = mi[ri - ri(ri)]
ri = xix + yiy + ziz
2
Lx = x mi(ri - x2) -y mixiyi -z mixizi
i
Ixx -Ixy -Ixz
2
Ixx = m(ri - x2)
i
Ixy = - mixiyi
Ixz = - mixizi
Iy..., Iz...
Lx = Ixxx + Ixyy + Ixzz
Ly = Iyxx + Iyyy + Iyzz
Lz = Izxx + Izyy + Izzz
L = I 
ł ł
Ixx Ixy Ixz
ł ł
ł ł
I =
ł ł
łIyx Iyy Iyzłł
Izx Izy Izz
Ixy = Iyx Ixz = Izx Iyz = Izy
Ią = (r)(r2 ą - xąx)dv
m
" m l  =
l
l l
r3 l3 ml2
I = r2dm = r2dr =  r2dr =  |l = =
0
3 3 3
0 0
l/2
r3 l3 l3
I0 = r2dr =  |l/2 = +
-l/2
3 24 24
-l/2
ml2
I0 =
12
2
ml2 ml2 ml2 l
I - I0 = - = = m
3 12 4 2
I = I0 + md2
"
mr2
I0 =
2
"
I0 = mr2
"
2
I0 = mr2
5
"
ml2
I0 =
12
dL L
dW = Md M =  =
dt I
dL d L L2 I2
dW = d = dL = dL = dL ! Ek = =
dt dl I 2I 2
M = 0 ! L = const ! I = const
"
L 
dL Ą" L
LĄ" = L sin ą
p
d d
= + p
dt dt
dL
= p L
dt
M = p L
mgr sin ą = pL sin ą
mgr mgr
p = =
L I
Kp
dL
= M
dt
dL dL
= p L +
dt dt
=0
dL
- p L = 0
dt
Kp
M
L
Kp = -p L = L p
I0 = mRs
R
T = 2Ą H"
g
84
2Ą 2ĄI
T = =
p mga

23ć%27
27725 46.79
9.2 19
rad
p = 46.79 /rok = 7.19 10-12
s
F l
= E
s l
s
l
E
F = kl
F = -kx
d2x d2x k
m = -kx ! = - x
dt2 dt2 m
k
2
0 a"
m
2
ć = -0x
x = A sin(0t + )
2Ą 2Ą m
0 = = 2Ą T = = 2Ą
T 0 k
x
kx2
Ep = - F dx = !-
2
0
"
x
F = mg sin  H" mg
l
mg
F = - x
l
=k
m l
T = 2Ą = 2Ą
k g
"
M = d Q
M = mgd sin ą H" mgdą
d2ą
M = - mgd ą I = M
dt2
k
I I
T = 2Ą = 2Ą
k mgd
1
Ec = Ek + Ep = const. = kA2
2
dx
FT = -bv = -b
dt
d2x dx
m = -kx - b
dt2 dt
d2x k b dx
= - x -
dt2 m m dt
b k
2
a" 2, 0 a"
m m
2
ć + 2 + 0x = 0
x = Ae-t cos(t + )
2
 = 0 - 2
2
0 - 2 = 0
xm(t) 2Ą
ln = T =
xm(t + T ) 
Fw = Fm sin(&!t)
d2x dx
m = -kx - b + Fm sin(&!t)
dt2 dt
Fm
2
ć + 2 + 0x = sin(&!t)
m
x = A sin(&!t + )
Fm
A =
2
m (0 - &!2) + 42&!2
2&!
 = arctan
2
&!2 - 0
2
1 Fm 2&!2
P =
2
2 m (0 - &!2) + 42&!2
&! - 0
1 - 2 1 + 2
x = A cos(1t) + A cos(2t) = 2A cos t cos t
2 2
1

D
2
2Ą 2Ą 1
T0 = = =
D 1 - 2 1 - 2
D =  = 1 - 2
Ą
1 = 2 ( = 0, Ą), ( = ),
2
Tk = 23, 32 = 2, 36 106s
RZK = 3, 84 108m H" 60Rz
2
2Ą m 9, 80 g
ad = 2RZK = RZK = 2, 72 10-3 H" =
T s2 602 (RZK/RZ)2
Mm r
F = -G
r2 r
t
m dM
dF = dF1 cos ą = G cos ą
x2
dM = dV = 2Ąr sin rdt = 2Ątr2 sin d
R - r cos 
cosą =
x
R2 + r2 - x2
r cos  =
2R
2xdx x
-r sin d = - ! sin d = dx
2R Rr
ĄGtmr R2 - r2
dF = + 1 dx
R2 x2
ą
R+r
R2 - r2 R2 - r2 R+r
F = ą + 1 dx = ą + x =
x2 -x
R-r
R-r
R2 - r2 R2 - r2
= ą - + R + r + - R + r =
R + r R - r
= ą [-R + r + R + r + R + r - R + r] = 4ąr
4Ąr2tm Mm
F = G = G
R2 R2
r+R
R2 - r2 R2 - r2 r+R
F = ą + 1 dx = ą + x =
x2 -x
r-R
r-R
= ą[-R + r + R + r - R - r - r + R] = 0
r
r
Mm Mm Mm
Ep = W"-r = G dr = -G = -G
r2 r r
"
"
"Ep Mm
F = -gradEp = - r = -G r
Ć Ć
"r r2
M r 4
Ąr34Ąr2
Gmdm
3
W = - = - G dr =
r r
0 0
r
G(4Ąr3)2
16 16 r5 3
3
= - G Ą22r4dr = -G Ą22 = -
3 3 5 5 r
0
3 GM2
W = -
5 r
d2r1 GM1M2
M1 = - r
Ć
dt2 r2
d2r2 GM1M2
M2 = r
Ć
dt2 r2
M1r1 + M2r2
RCM =
M1 + M2
d2r1 GM2 d2r2 GM1
= - r; = r
Ć Ć
dt2 r2 dt2 r2
Ł

M1r1 + M2r2 = 0 ! M1rŁ1 + M2rŁ2 = const ! RCM = const
= 0
d2r d2(r1 - r2) 1 1 GM1M2
= = - + r
Ć
dt2 dt2 M1 M2 r2
1 1 1
a" +
M1 M2
d2r GM1M2
= - r
Ć
dt2 r2
M = 0 ! L = const
l = r v = const ! Ą" L
v = Yr + ru
Ł Ć
L = r v = r (Yr + rp) = r2z
Ł Ł
v2 (Y2 + r22) Y2 r22
Ł Ł
Ek = = = + =
2 2r2 2 2
Y2 (r2)2 Y2 L2
Ł
= + = +
2 2 2 2r2
L2
2r2
L2 GM1M2 L2
Eef = Ep + = - +
2r2 r 2r2
GM1M2
= - + 2r
r
r2
" E < 0
" E = 0
" E > 0
1
"S = r "r
2
dS 1 dr 1 L
= r = r p =
dt 2 dt 2m 2m
dS
L = const ! = const
dt
1 1
= (1 - e cos )
r se
s
e
Mm 2Ą
G = m2r  =
r2 T
2
T 4Ą2
=
r3 GM
4Ą2a3
2
T =
G(M1 + M2)
C c
Ep = - F = - r = Ma
Ć
r r2
Ł
rF = Mrv
rMa
c
Ł
- = Ep = Mrv
r
d
Ł Ł
M (rv) = MYv + Mrv = Mv2 +Mrv
dt
2Ek
d
M (rv) = 2Ek + Ep
dt
rv
< 2Ek >= - < Ep >
Ep
Ek
F N
p = 1P a = 1
S m2
kG
m2
1 dv
B = - |E=const
V dp
1
 =
B
" 50cm3 50cm3 96cm3
3, 7%
N
5, 4 108
m2
"
"
dp = gdh
ph = gh
Sv = const
S
v

V (x) = vx"y"z"t
"vx
V (x + "x) = vx + "x "y"z"t
"x
"vx
"V = V (x + "x) - V (x) = "x"y"z"t
"x
"vx "vy "vz
+ + = "v = v
"x "y "z
v = 0
div(v) = 0
"
(v) + = S
"t
"
"t
S
v2
gh + + p = const
2
p"V
mgh = "V gh
mv2 "V v2
=
2 2
dv
 = f - grad p
dt
f
"
"
"
"
"
"
"
"
"
Ft = -6Ąrv

rv
Re =

v2
Fc = C S
2
C
v2
2
C
Re < 1160
Re > 1160
 = vds
vds
v = lim
A0
A
v = 0

x w ę
Ć
" " "
rotv = " v =
"x "y "z
vx vy vz
F
 =
2l
Ąr2p rp
 = =
2Ąr 2
2
p = !-
r
Tt = 273, 16K
t[ć%C] = T [K] - 273, 15ć%
5ć%
1ć%F = C
9
-40ć%C = -40ć%F
100ć%C = 212ć%F
0ć%C = 32ć%F
"U = W + Q
U
dU = W + Q
W = F dx = p Sdx = pdV
dV
W = -pdV
Q = mcwdT
cw
Q
dS =
T
"S e" 0
dU = T dS - pdV
"
"
U 3
= kT
N 2
J
<"
k 1, 38 10-23
=
K
"
dv dv
m = F r ! m r = F r
dt dt
d dr dv dv
(r v) = v + r = v2 + r
dt dt dt dt
dv d
r = (r v) - v2
dt dt
d
m (r v) = F r + mv2
dt
m d F r
(r v) = + Ek
2 dt 2
1
< Ek >= - < F r >
2
F r F r = 0
F r = -F l = -(pl2)l = -pl3 = -pV
< F r >= -3pV
3
< Ek >= pV
2
< Ek >= U
2
pV = U
3
3
U = kT N
2
pV
= nR
T
m pV m pV R
n = = R =
T T m
p R
= = const
T
(T = const) pV = const
U = const
Vb Vb
const Vb Va
W = - pdV = - dV = -const ln = nRT ln
V Va Vb
Va Va
W + Q = 0 ! Q = -W
(p = const)
V nR
= = const
T p
Vb
W = - pdV = -p(Vb - Va) = p(Va - Vb)
Va
Q = mcwp(Tb - Ta) = n cp (Tb - Ta)
cmol
p
cmol = cp
p
(V = const)
p R
= = const
T V
W = 0 Q = mcv(Tb - Ta)
"U = Q
mcvdT = -pdV + mcxdT
p dV dV nR
p = const : cv = - + cp =
m dT dT p
p
R
cp = cv +

cmol = cmol + R
p v
Q = 0
dU = W mcvdT = -pdV
m RT
mcvdT = dV
V
cv dT dV cv
= - ! ln T + ln V = const
R T V R
cv cv
R R
T V = const ! (pV ) V = const
cmol
cv + R
p
 = =
cv cmol
v
cp
=  > 1
cv

pV = const
1
kT
2
1
E = (p2 + p2 + p2)
x y z
2m
3 1 "U 3 3 5
U = NkT cmol = = R cmol = R + R = R
v p
2 n "T 2 2 2
v
cp 5
 = = = 1, 67
cv 3
1 1
2 2
E = (p2 + p2 + p2) + (l1 + l2)
x y z
2m 2I
5 5 7 7
U = NkT cmol = R cmol = R  = = 1, 4
v p
2 2 2 5
6 6 4
U = NkT cmol = R cmol = 4R  = = 1, 33
v p
2 2 3
1 1
E = p2 + ąx2
x
2m 2
U = NkT
cmol = R
v
J
cmol = 3R H" 25
v
mol K
3R
W = Q
Q
"S = - < 0
T
W = Q - Q
Q Q
"S = "S + "S = - + e" 0
T T
Q Q - W
"S = - + e" 0
T T
W Q Q W T T - T
d" - ! d" 1 - =
T T T Q T T
W T - T
 a" d"
Q T
Q - Q Q T (S - S ) T
 = = 1 - = 1 - = 1 -
Q Q T (S - S ) T
p
T = const = const dp = -gdh

p p0 p
= !  = 0
 0 p0
p
dp = - 0gdh
p0
dp 0
= - gdh
p p0
0
ln p - ln p0 = - gh
p0
0g
p = p0 exp - h
p0
Q = T dS, W = -pdV, dU = mcvdT
dU = Q + W
p m R
mcvdT = T dS - pdV =
T V
dT p
dS = mcv + dV
T T
m
T2 V2
"S = mcv ln T + R ln V
T1 V1

T2 mR V2
S2 - S1 = mcv ln + ln
T1 V1
2
N
p + a (V - Nb) = kNT
V
"
"
"
"
"
" y = f(x - t)
" y = f(x + t)
1

T
 vT
2Ą
 = 2Ą
T
2Ą
k =

x t
y = f - = f(kx - t)
 T
 
vf = =
T k
dvf
d
d 
vgr = ; vf =
dk k
d dvf 2Ą dvf d
vgr = (kvf) = vf + k = vf +
dk dk  d dk
d d 2Ą 2Ą 
= = - = -
dk dk k k2 2Ą
dvf
vgr = vf - 
d
vgr = vf

Fw = F
"m = "l, F
"mv2
2F sin  =
R
"l/2 "lv2
2F =
R R
F
v =

F
 =  =
S S

v =

Fw = S(x + "x) sin ą(x + "x) - S(x) sin ą(x)
"y
sin ą(x) H" tan ą(x) =
"x
(x + "x) H" (x)
"y "y "y "2y "y "2y
Fw = S (x + "x) - (x) = S (x) + "x - (x) = S "x
"x "x "x "x2 "x "x2
"2y "2y
S"x = S "x
"t2 "x2
"2y  "2y "2y 1 "2y
= ; =
"x2  "t2 "x2 v2 "t2
 F
v = =

(x, t)
x x + "x
"2
S"x = S(x + "x) - S(x)
"t2
"2 (x + "x) - (x) "
 = =
"t2 "x "x
"
 = E  =
"x
"2 E "2 E
= ! v =
"t2  "x2 
Ć
v =

Ć
1
ł = t t = Ćł
Ć
Ć
"F "l
= -E
S l
"F "l "V
= "p; =
S l V
"V dp
"p = -E ! E = -V a" , 
V dV
E 
v = =
 
  -1
pV = const V dp + pV dV = 0
dp
 = - V = p
dV
p p R
v = =
 T
RT
v =


v
u
t1 = 1s
t1
s1 = ut1 = uT = 0
T

s1 0
v v v
s = vt1 = ut1 = 0 
u u u
v
 = s = s + s1 = 0 1 +
u
0v v
 = 0 + = 0 1 +
u u
0v v
 = 0 - = 0 1 -
u u
a
a
t1 =
u
t = T0 (a - vT0)
a - vT0
t2 = + T0
u
a - vT0 a v
T = t2 - t1 = + T0 - = T0 1 -
u u u
1 1 0
 = = =
v
v
T
1 -
T0 1 -
u
u
a + vT0 v
t2 = + T0 T = t2 - t1 = T0 1 +
u u
0
 =
v
1 +
u
y = F (x + ut) - F (-x + ut)
x t x t
y = A sin 2Ą + - A sin 2Ą - + =
 T  T
x t x t
= A sin 2Ą + - sin 2Ą - + =
 T  T
x t
= 2A sin 2Ą cos 2Ą
 T
x  
2Ą = nĄ ! x = n = 2l
 2 4

x = (2l + 1)
4
 >
 <
RT
v =

m
0ć%C - v = 331, 8
sm
20ć%C - v = 343, 8
sm
100ć%C - v = 387, 2
s
W
-I0 = 10-12
m2
I
 = 10 log
I0
km
c = 214300
s
ł 40, 5 =
2ą
vz
tan ą = ! ą H" 20, 5
c
km
c = 315300 ą 500
s
km
c = 289000 ą 500
s
km
c = 299796 ą 4
s
c =   = 5960, 9000, 9500
km
c = 299792, 5 ą 1
s
km
c = 299794, 2 ą 1, 9
s
km
c = 299793, 1 ą 0, 3
s
m
c = (2, 997925 ą 0, 000003) 108
s
m
c = 299792458
s
1s a" 9192631770
L1 L1 2L1c
vz : t1 = + =
2
c - vz c + vz c2 - vz
s 2 L2 + x2
2
Ą" vz : t2 = =
c c
vz
L2
x vz L2
2
c
" = ! x = ; L2 + c2 =
2
2
2
vz
L2 + x2 c
vz
1 -
1 -
c2
c2
2L2 1
t2 =
2
c
vz
1 -
c2
2L1c 2L2 1
"t = t1 - t2 = -
2
2
c2 - vz c
vz
1 -
c2
90ć% (L1 ! L2)
2L2c 2L1 1
"t = t 1 - t 2 = -
2
2
c2 - vz c
vz
1 -
c2
ł ł
ł ł
2
2 1 vz
ł
 = "t + "t = (L1 + L2) - 1ł H" (L1 + L2)
ł ł
2 2
ł
vz vz łł c3
c 1 - 1 -
c2 c2
c Vz2 L1 + L2
k = H"
 c2 
km
vz = 30 ,  H" 610-7m, L1 = L2 = 1, 2m
s
k H" 0, 04
x = x - vt
y = y, z = z, t = t
x = Ax + B
ńł
ł
łx
ł
= ł(x - vt)
ł
ł
ł
ł
ł
łt = ł(t - ąx)
ł
ł
ły
ł
= y
ł
ł
ł
ł
ł
łz = z
ół
ł1, ł2, ą
x2 + y2 + z2 = ct2
x 2 + y 2 + z 2 = ct 2
2 2
ł1(x2 - 2vxt + v2t2) + y2 + z2 = c2ł2(t2 - 2ątx + ą2x2)
v2
2 2 2 2 2 2
x2 (ł1 - ł2c2ą2) +2xt [-ł1v + c2ł2ą] +y2 + z2 = c2t2 [ł2 - ł1 ]
c2
1 0
1
ńł
ł
2 2
łł1 - ł2c2ą2 = 1
ł
ł
ł
ł
c2ą
2 2 2 2
ł-ł1v + c2ł2ą = 0 ! ł1 = v ł2
ł
ł
ł
ł
2 2
ółł2 - ł1 v2
= 1
c2
ńł
ł
łc2ął - ł2c2ą2 = 1 ! ł2 c2ą - c2ą2 = 1
2 2 2
ł
ł
2
ł
v v
ł
ł
c2ą v2
2 2 2
2
łł - ł2 v c2 = 1 ! ł2(1 - ąv) = 1
ł
ł
ł
ł
ł
ół
c2ą
- c2ą2 = 1 - ąv
v
c2
-c2ą2 + ą + v - 1 = 0
v
2 2
c2 c4 c2
" = + v - 4c2 = + 2c2 + v2 - 4c2 = - v
v v2 v
"
c2
" = - v c > v
v
c2 c2
- - v - + v
1
v v
ą1 = =
-2c2 v
c2 c2
- - v + - v
v
v v
ą2 = =
-2c2 c2
1
2 2
ł2 = ! ł1(ą1) = "
1 - ąv
1 1
2
ł2(ą2) = =
v
v2
1 - v
c2 1 - c2
v
c2 1
c2ą
2 2 c2 2
ł1 = ł2 = = ł2
v v v2
1 -
c2
v 1
2 2
ą = , ł1 = ł2 = ł2 =
c2 v2
1 -
c2
v 1 1
 = , ł = = > 1
c
1 - 2
v2
1 -
c2
ńł
ł
łx
ł
= ł(x - vt) = ł(x - ct)
ł
ł
ł
ł
ł
ły = y
ł
ł
łz
ł
= z
ł
ł
ł
ł
ł
łt = ł(t - v x) = ł(t -  x)
ół
c2 c
ńł
ł
łx = ł(x + ct)
ł
ł
ł
ł
ł
ł
ły = y
ł
ł
łz = z
ł
ł
ł
ł
ł
ł
łt = ł(t +  x )
ół
c
x , y , z , t

x 2 + y 2 + z 2 - c2t 2 = ł2(x - ct)2 + y2 + z2 - c2ł2(t - x)2 =
c
= ł2x2 - 2ł2cxt + ł2(ct)2 + y2 + z2 - c2ł2t2 + 2ł2cxt - ł22x2 =
x2 (1 - 2)ł2 +y2 + z2 - c2t ł2(1 - 2) = x2 + y2 + z2 - c2t2
1 1
x2 + y2 + z2 - c2t2 = const
S = c2"t2 - "x2 - "y2 - "z2 = S
S > 0
S = 0
S < 0

dx = łdx + łxdt ; dt = łdt + ł dx ; dy = dy
c
dx łdx + łcdt vx + c vx + v
vx = = = =

vx vxv
dt
łdt + ł dx
1 + 1 +
c
c c2
1
2
vy
dy dy v2
vy = = = 1 -

vxv
dt c2
łdt + ł dx
1 +
c
c2
vx - v vx
vx = - 1 - vx - v
vxv
c
1 -
c2
dvx
a x =
dt
ł ł
vxv v
1 - - (vx - v) -
d vx - v
c2 c2 dvx =
ł łł
dvx = dvx =
vxv 2
vxv
dv
1 -
1 -
c2
c2
vxv vxv v2 v2
1 - + - 1 -
dvx
c2 c2 c2 dvx = c2
=
2
vxv 2 vxv 2dvx = vxv
1 - 1 - ł2 1 -
c2 c2 c2
dvx 1 ax
a x = =
2
vxv vxv 3

ł2 1 - ł3 1 -
łdt - łdx
c2 c2
c
a x
ax =
3
vxv
ł3 1 +
c2
a x
(vx = 0) ! ax =
ł2
v - c ! ł - " ! ax - 0
"
" L0 = x 2(t 2) - x 1(t 1)
t 1 t 2
"
L = x2(t2) - x1(t1) t2 = t1 = t
L0 = x 2(t 2)-x 1(t 1) = ł(x2-ct2)-ł(x1-ct1) = ł(x2-x1)-łc (t2 - t1) = łL
0
L0 L0 L1 ł1
L1 = i L2 = ! =
ł1 ł2 L2 ł2
x t 

t = ł(t + x ) = ł
c
t = ł 
t 1 = 0 (x = 0)
t1 = 0, x1 = 0
t 2 = T0 (x = 0)
v
t2 = ł(t 2 + x 2) = łT0
c2
x2 = ł(x 2 + vt 2) = łvT0
x2
"t = x2
c
łvT0 v
T = t2 + "t = łT0 + = łT0(1 + ) =
c c
v v
1 + 1 +
1 + 
c c
= T0 = T0 = T0
v
1 - 
v2
1 -
1 -
c
c2
1 1 -  1 + 
 = = 0 ;  = 0
T 1 +  1 - 
x
cos ą =
ct
x
cos ą =
ct
x v
ł(x + vt ct + c cos ą + 
cos ą = = =
v
v x
1 +  cos ą
cł(t + x )
1 +
c2
c ct
cos ą + 1
 - 1 ! cos ą - = 1 ! ą - 0
1 + cos ą
vy v2 1/2
vy = 1 -
vxv
c2
1 -
c2
"y "y "t
=
" "t "
"y "y
= ł = vył
" "t
mv
p a" = mcł = m(v)v
v2 1/2
1 -
c2
1
ł2 = ! ł2 - 2ł2 = 1 m2c4
0
1 - 2
m2c4ł2 - m2c42ł2 = m0c4
0 0
m2c4 - p2c2 = m0c4
1 1 1
mc2 = m0c2 H" m0c2 1 + 2 + . . . = m0c2 + m0v2
2 2
1 - 2
Ek
m0c2
E a" mc2 =
v2
1 -
c2
E2 - p2c2 = m2c4
0
ł ł
ł ł
dp d m0v
ł ł
F = =
ł ł
dt dt ł
v2 łł
1 -
c2
dp
FT =
dt
dv v2 1 v dv
ł ł
m0 1 - + m0v
dt c2
v2 c2 dt
ł ł 1 -
d m0v
ł ł
c2
FT = = =
ł ł
dt ł v2
v2 łł
1 -
1 -
c2
c2
m0 dv m0
= = aT
v2 3/2 dt v2 3/2
1 - 1 -
c2 c2
FN
m0
FN = aN
v2
1 -
c2
F = ma

v FT FN
c mcaT m0aN
E = m0c2 = const
E
px = ł p x + ! dpx = łdp x
c
dt = łdt , dpy = dp y, dpz = dp z
dpx łdp x dp x
Fx = = = = Fx
dt łdt dt
1 1
Fy = Fy; Fz = Fz
ł ł
x2 x2
dp
W = F dx = dx
dt
x1 x1
dv
m0
dp d m0v
dt
= =
dt dt
v2
v2 3/2
1 -
1 -
c2
c2
dv
t m0 vdt v
v m0c2
dt
W = = m0 dv = - m0c2 = Ek
ł3
0 0 v2
v2 3/2
1 -
1 -
c2
c2


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