Механика жидкости и газа_Свойства жидкостей и газов_Гидростатика_2022
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15.
: h1 = 0,5 ,
= 950 3. = 0,11 . -
h2 = 1,2 . -
.
16. U
. h,
h = 70 ; = 13600
. 4.3. 15 3, – = 1000 3 .
17. -
,
h2 = 20 .
h2 = 45
.
18.
= 1,3·105 .
,
, -
-
. 4.4. 16 h = 25 ( = 13600 3).
19.
-
,
,
-
h = 340 ( = 13600
3).
20. U
-
. 4.5. 17 ( . 6.10),
. :
31
)
p0, h1 = 150 , h2 = 250
, p = 100 ;
) h2,
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p0 = p h1 = 252 . |
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21–24. |
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. 7 - |
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. 4.6. |
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. 4.8), - |
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18, 19 |
. -
zd.
. 4.7. 20 . 4.8. 21–24
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7 |
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H1, |
H2, |
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21 |
5 |
1 |
90 |
, |
=1,5, b=1 |
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b |
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22 |
5 |
2 |
45 |
, |
=1, b=1 |
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b |
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23 |
5 |
1,5 |
90 |
d |
d=l,5 |
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24 |
4 |
2 |
45 |
d |
d=2 |
32
. 4.9. 25 |
. 4.10. 26 |
25.
b = 1, , h = 0,8 . H = 3,5 , = 0,5 .
26.
D = 1 . -
= 1,25, H1 = 4 , H2
= 1,2 .
. 4.11. 27 |
. 4.12. 28 |
27.
b = 12 , h = 2 .
28.
b = 8 , 1 = 5 , 2 = 1 ,
= 45°.
. 4.13. 29 |
. 4.14. 30 |
33
29.
b = 10 , -
1=5 , 2=3 .
30. , -
, -
b = 2,5 .
, H = 3 .
31–38. . 8 -
1 . . (
) ABC. -
ABC. h = 1 , r = 0,5 .
8
.
31
32
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. 8
.
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35
36
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. 8
.
37
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39.
1,0 ( . 4.15), R = 2 , H = 4 .
. 4.15. 39 |
. 4.16. 40 |
40.
36
. 4.16).
1 , R = 1 , H
= 4 .
41.
G = 21 , D = 0,7 , l = 1,2 ,
q = 500 .
42. , 10 -
d = 240 20 200 50
2000 , 800 3,
L = 6,0 , q = 300
W= 200 .
43. 0,52
870 3
B ( . 6.14). h
B,
10 .
44.
1230 , 735 . -
.
45.
-
. 4.17. 43
: -
, – .
0,164 . 0,150 . -
.
46. d = 300
l = 10,0 , -
G = 2,6 ? 840 3.
47. -
100 20
2,5 , – 400 .
37
, .
1000 3.
48. 36
10 1 . -
25 .
, 2 103 3.
49. 800
3/4 , , -
900 3, ,
1 2,4
. 7 800 3.
50. ,
88 . 1180 3.
, , = 7850 3.
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1., . . -
[ ]: / .
. – . . – .: "
", 2017. – 272 . – : -
. . , .
2., . [ ]:
140100 " -
" / . . . – . . – .: -, 2014. – 334 . – : -
. . , .
1., . :
" " / . . ,. . , . . [ .]. – .: -
, 2008. – 166 .
2., . [ ]: /
. . – . . – .: " ":
" ", 2013. – 464 .
1.: [ -
] / « ». – : http://sfiz.ru/list.php?c=mehzidgaz, .
2. [ ]: -
/ . – : http://www.libedu.ru/nauka/fizika/mehanika_zhidkosti_i_gaza/, .
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