w
.
1. .
.
p + p d + e+ + e,
d + p 3He + ,
3He + 3He 4He + 2p.
24.6 . ,
3He +4He 7Be + ,
7Be + e- 7Li + e,
7Li + p 4He + 4He.
, .
4p 4He + 2e+ + 2 e.
, E = 24.6 . W = 4 1033 /c, R = 1.5 1013 . , N = 2 W /E. ,
2. p + p d + e+ + e, , p + n d + , , , ?
: 90% ~10% . 1%.
, , . 2He 5Li . 8Be ~10-16 .
p + p 2He + ,
p + 4He 5Li + ,
4He+ 4He 8Be+ g.
p + p d + e+ + e.
, ~1 , ~10-23 .
p + n d + , .
3. w = 0.14 /2. ? , ?
, , R, S = 4 . ,
W = wS = 4 w = 4 x 3.14 x 0.14 /2 x (1.5 1013 )2 4 1026 = 4 1033 /
E m = E/c2.
= W / c2 = (4 1033 /)/(3 1010 /)2 = 4.4 1012 /.
M = 1.99 1030 ,
t = M / = 1.99 1030 / 4.4 109 / = 4.5 1020 = 1.4 1013 .
, .
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4. , M t = 106 ( W = 4 1033 /, M = 2 1033 ).
-
m = W/c2 = (4 1033 /)/(3 1010 /)2 = 4.4 1012 /.
, t = 106
M = m t = 4.4 1012 / x 106 x 3.16 107 / = 1.4 1026 .
M t = 106
M = M / M = 1.4 1026 / 2 1033 = 7 10-8.
5. , M, rG = 2GM/c2, G - . , .
= 2GM /c2 = 2 x (6.67 10-11 3/ 2) x 5.98 1024 /(3 108 /)2 = 8.86 10-3 .
= 2GM /c2 = 2 x (6.67 10-11 3/ 2) x 1.99 1030 /(3 108 /)2 = 2.95 103 .