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Ch11 ?????

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Title: Author: Huang Last modified by: Created Date: 2/10/2005 7:52:08 AM Document presentation format: Company – PowerPoint PPT presentation

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Title: Ch11 ?????


1
Ch11 ?????
11-1 ???????? 11-2 ???? 11-3 ????? 11-4
?????? 11-5 ??????? 11-6 ??????
2
11-1 ????????
??????????,???????????????????????????????
????????????,?????????
  • ?????????????????
  • ????????????????? F?,????? A,???????????
  • ???????????????

3
  • ?????
  • ?(Pa) ??/??2 ??/??2
  • ?(bar) 105 ? 105 ??/??2
  • ??????(cm-Hg) 1332.8 ??
  • ??????????
  • (1).???????????????
  • (2).?????,????????????
  • (3).? h ??,????????????????

4
  1. ??????,??? h ???????

??????? a ?????????,???? m ??????????????
mg???????????? g ?? g' ,????
5
????????,??????????? h,? w,???????????
60o?,?????,??????????????????????
6
???????? h????? r?????? ? ????????,??????????????
????????,??????
7
??U ???????(?????13.6g/cm3),??????
13.6??????,????????????????
??0.5 ??
8
?????,????? ? ??????????????????? a ?,???????? h
?,??? _______?
9
???????? r?????? l4r ?U??,??????? a
?????,??????????????????????? g?
10
???????? r?????? l4r ?U??,???????????????????,??
???????????????
11
11-2 ????
  • ??????????
  • ?????,??????? A ??????,??? A ?????????????????????
    ?
  • ????????????????????,????????,?????????????,?????
    ,??????,???????,??????????
  • ??????????????,???????????????????????????????????
    ??

12
P0 ?????????? a ??????? 1.25 x 10 -4 (1/m) h
????????
13
  • ??????
  • ?????? 1643?????,????????????,??????????(??),?
    ????????????,???? 76??????????????
  • ??????(atm)
  • ????????????? 45??????,???
    0??,76????????????????

14
???????????????????????????????????? (A)1??
(B)10?? (C)100?? (D)1000?? (E)10000??
68.??
??E
15
???????? 10????,???????,??????,??????,???????????
????????????? (A)100 (B)103 (C)106 (D)109?

71.??
????????????????????????????????????,????????????
???????,????????????,?????? P0,?
16
11-3 ?????
  1. ??????????????????????????????????

??????????????(???)????
???????????,???????????????????????????????
17
  • ?????
  • ?????????????,???(???? A1)????????
    F1,????????????????

???????,??????????????(???? A2)?????,????????
????????????,?????????????,??????????????????
18
??????,???????? 9cm2?3cm2 ?????,????????????,????
?????? 100gw ???,?????,??????????
??25cm
19
????????????,???????? A1 ? A2,?? A1 ??? W1,? A2
???? W2 ?,??????????????,???????? W1 ???????
h,??? A2 ??????? ________?
86.??
20
11-4 ??????
  • ?????
  • ???????????????????????????? A,???
    h???????????????????,???????,????????????????

???????????
?????????????
21
  • ??????
  • ??????????????????????

??????????????,??????????????????????????????????
????????????????,?????????????????
B????????????????????????(???),????????? B'
?????????????,??????????????,??????????????? W?
22
?????????? A,??? B,?????,???????????????????????
?,???????? ________?
84.??
23
?????????,??????????????????? 0.1??,???
0.76????????????,??????? 0.06???????,0.04
???????(??),?????? __________??/??3?
90.??
??600kg/m3
24
?????? x(x lt 1)???,????? h ???,?????,??????,?????
?????????????
25
?????? S1 ????,??? x ??,?? 103????,??????????? y
??,????????? S2 ??????????(???),??????????? (A)
S1 ??? lt x ?? 68.?? (B) S1 ??? gt (
x -2 ) ?? (C) S2 ??? lt ( x y ) ?? (D) S2 ??? gt
( x y 1 ) ?? (E) S1 ? S2 ???? gt ( x y 1
) ???
??ABC
26
?????,?????,???????,??????,?????????????????,????
?????
??0.75
27
????????(??? d)?? W0,??????,???? W,??? D(D gt
d)???,??????,????????????????
28
????????,??? l,??? d,?????????,?????,???????????,
???????
29
11-5 ???????
  • 1. ????
  • (1) ???????
  • ?????????????
  • ?????????
  • ????????
  • ??????????

(2) ??????? ?????,????????????,????????????,?????
?,??????????,??????????
??
??
30
  • (3) ???????
  • ??????????????,???????
  • ?????????????????????????
  • ??????????????????,???????????????????

(4) ??????? ????????,?????????? l
????,???????????????????,???????,??? T ??
31
??????? 20? ??????
32
?????,?????????,????????????????????????????,???
20cm??????? 10g ?,?????,????????????
??0.25 gw/cm
33
?????? l,??? W1 ????,????????? a
????????(????)???????????? W2 ?????,????????? a
????,????????? ________?(? W1,W2 ? l ??)?
89.??
34
??????????? 0.72 ??? 5 ??????,???,?????????(????)
35
????????????,??? 10 ?????,? 20?
??????,?????,???????????
36
???????,????? T ????,??????????? R
???,???????????
37
?????????????????,?????????????????????????
T1,??????????? T2 (T1gtT2),????????????
??L(T1-T2)
L
38
??????????? r,???????,????? T,??????
g,????????????,????????
39
  • 2. ????
  • (1) ???????
  • ??????????????,??????????,????,?????????,??????
  • ???????????????,??????????,????,??????????,??????
  • ?????????,?????????
  • ????????????????,????????????????

40
  • (2) ???????
  • ????????(????)?????????????????????,???????,??????
    ??????????,???????????????????,??????????,????????
    ???? alt 90o ??????????????,????????,??????,?????
    agt 90o ?
  • ???,?????????,????????????????,?????????,????,???
    alt 90o ,????

41
  • ??????????,??????????????????,???????????,?????,??
    ? agt 90o ,????

(3) ??????? ???,????????,??????,?????,???????????
????? h
T ??????????????? g ???????
42
??????????????????????????????,??????????????????
????,?????????????????????????????????????????????
,??????????????,???????????????????????????????,??
43
???????????,????? 1 ????????????,???????,????????
???????(?????????? 0.465 N/m????????? a 135o?)
??75.51cm
44
??????,? U ????,?????????? r1 ? r2 (r1 lt
r2)??????????? ?,???????????,??????? h,??????????
_________?
81.??
45
???????????? r,????????,???????(????)????????????
?? h,???????????a?????????,????? T,???????
Po,?????? g,????????? __________?
85.??
46
11-6 ??????
  • 1. ?????????
  • ???????,????????????????
  • ????????????????,????????
  • ??????,???????????,????????????,??????
  • ???????????,??????????,????????

47
2. ????? ??????????,?????????????????????????????
???,????? A1 ????? v1,??????????????????
?A1v1?????? A2 ????? v2,??????????????????
?A2v2,?? v1,v2 ??
???????,??????,????????????????????
48
???????????? A0,????? v0,??????? h
???,???????????
49
3. ?????? ????????????1738????????,???????????,?
??????????????? P1?v1?y1 ? P2?v2?y2,???????
50
?????????????????????,1?2 ??????????????
51
????????? ? y1 y2 ,?????????????,?????????
?????,?????
  • ??????????????????,?????,??????,?????????

52
  • ???????????????????,??????????????????,??????????
    ?,????????
  • ??????????,??????????????????,???????????????????
    ????????????????,??????????????

53
???????????????????????,?????????????????
??DE
54
????????,?????? h ?????,????????,???? H
?????????,???????
55
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