1. m1.
2. : m1=...., m2-....., m3=...., 1=....., l=....
3. 11 (.1) , .
4. 6 , .
5. S0.
6. 12 .
7. , .
8. . 5 .
1
n/n | S | Scp-So | acp | |||||
S, |
9. a
a=(S S0)/l
10. V (9). 1, m1 m2 .
11. DV/V
(DV/V)=(Da/a)2+(Dm1/ m1)2+0.25[(Dl/l)2+((2m2+5m3)2Dm22+ (5m3+l2m3)2 Dm32) / (m22+5m2m3+m32)]
, Dg/g .
12.
V=(VDV).
: .
.2.
3
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: : , ,
.
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400x350x350 .
30.
:
1. - 1 .
2. - 1 .
.
1 (.3), 2, 3 4. , 5. 6.
. , . : , .
.
, ! : dW = d. m I. , , mgH. . :
|
|
mv2/2+ I w2/2 - mgH = 1, (1)
A1 - n1 . .
v = at; H = gt2/2 (2)
v = 2/t (3)
w =2H/rt (4)
- ;
v - ;
w - ;
t - ;
r - .
. , . 1= n1 2 =n2, n2 - . , 2 0 - Iw2/2 = 2 = n2,
= Iw2/2n2
1 = - n1w2/2n2 (5)
ai (1): (mv2/2 + Iw2/2) - mgH = - n1I w2/2n2
v w (3) (4) :
I = mr2(gt2 - 2)/ 2(1 + n1/n2) (6)
r=d/2 gt2 2H, :
I = md21gt2/8H(1 + n1/n2) (7)