1.
: , 5 . , , .
1:
ü
ü ,
2:
ü
ü
3:
ü
4:
ü
ü
5:
1.
, . . : , , , , , , , , .. - .
.
, , . , , , ..
.
1
() | |||
, , | [] | , , , , | |
[2] | |||
[3] | |||
[] | |||
[] | |||
[/2] | |||
[c] | , , | ||
[C] | |||
[] | |||
, | [] |
.
, , (1, 1, 1 ..). . - 1 . 1, , . . , 1/ 299 792 458 . 9 192 631 770 , -133.
|
|
. , , , , .., , . , , (. 2-3).
2.
L | ||||
M | ||||
T | ||||
Q | - | |||
I | - | |||
J | - | |||
N | - |
( , , ) , . , (, ) .
, , . .
. . , , . , , , . .
. , , , , . L, M T, , a, b, .. , .. A a, b, , d, e, f, g, :
[A] = L a MbTc Θ d I e J f N g,
, , , , L, M, T .. , .. .
: () ρ = , : [ρ] = [ m ] [ V ]-1 = (L3)-1M1T0 Θ 0 I 0f N 0,
, , : [ρ] = L-3M1,
, , , .
|
|
.
: () V = πR3 : [V] = [π] [R]3=L3.
3.
, | ||||
1 | ||||
××2 | ||||
/2 | 1××2 | |||
, , | × | 2××2 | ||
, | / | 2××3 | ||
× | × | |||
/ | 2××3×1 | |||
/ | 2×1×4×2 | |||
/ | 2××3 ×2 | |||
/ | 2×1×3×2 | |||
× | 2××2×1 | |||
, | /2 | ×2×1 | ||
, | / | 2××2×2 | ||
× | ||||
2×× | ||||
1 | 1 | |||
/ | 2×2 |
.
1. :
) a =
. J= ,
[J] = [ S ] [ t ]-1 = L1T-1
: [ a ] = [ J] [∆ t ]-1 = L1 T-1T-1= L1 T-2
) F = ma
. [ F ] = [m] [ a ] = L1 M1T-2
) k =
. [ k ] = [F] [ ∆x ] = L1 M1T-2 L-1 = M1T-2
) M = m0N a =
. [M] = [ m ] [ v ]-1 = M1N-1
, , .
, , E = .
[E] =[ ] [ m ] [ J ]2=M1(L1T-1)2 = M1L2T-2 = L2 M1T-2
, (100)2×(1000)1×(1)-2=107 . 1=107.
2. , 7800/3, .
. :: [ρ] = L-3M1.
, (100)-3×(1000)1=10-3 , 1000 . , 7800/3=7,8/3.
, , ( ) .
3. 1010 . .
: , .
. , , S = ct, - , t - . : [S] = L1, : [V] = L3.
|
|
, , V~(ct)3.
: V~c3t3~ (3.108)3.(3.1017)3~7.10773
4. . , , ?
. , , , V. , [V] = L3. , , S.
: : - , , ?
,
[S] = L2. = , . V S .
[t] ~ ~ L3L-2 ~ L1.
, L, . , , , L.
2.
: , . .
:
1) : , ( ),
2) : , () 10-15, ( )