/ : 1- 3002 - .

2- 6002 08 021

1- 6991 ) / 2 / 2 / 3 ( 2- 3002 [ 67.0 310.1 067 310.1 501 ] 67.0 ( 310.1 : ) 0067 - 067 - 6.7 - 3- 4002 .. [ ] 5- 8991 : ) ( 6- 1002 3:1[ 2:1 -2

4- 8991

-

] 1 : 2 - 1 : 1

7- 0002 . ) ( . 1 4 3 4 1

1 4

8- 5991 -

9- 9991 ) ( w ) 1 ( w 1. ( w1 w - w ...........) w + w1 w 01- 10023 s = 4 L

1 / 4 [ 1 ](Vol )1 L g = Vol s g 3 Vol L = Vol s 42 5

11- 4002 1 5

(1 2

-

2 1

-

4 3

-

3 4

)

:

(Vol )1 L1 g = (Vol ) 2 L2 g

3 4 2 Vol L1 = Vol L 5 5

3 2L = 4 1 L

21- 6991 ) .-1 -2 .-2 -1 .-1 -1 ( 31- 6991 ) ( 41- : ) ( . ) ( ) ( . ) ( . ) ( . ) ( . ) ( ) ( ) ( ) ( ) ( . ) (

51-

61- : ) ( .3

) ( . 71- : ) ( . ) ( . ) ( . ) ( 81- : ) ( . (3

) ( . ) (

) ( . ) ( .

91- : ) / 2 / : 4 : 18 ( 18 : 4 4 : 81 2 : 9 ) 9 : 2 4 : 18 = 2 2 : 2 9 = 2 F : f = R 2 : r

02- ) ( 9 : 2

12- . 001 : ) 0002 0001 001 401 01 (F A = f a F 10 a = 001 a F =1000 N

22- ) ( : ) ( ) ( ) ( ) ( ) ( 32- ) ( ) ( ) ( . ) ( . ) ( . ) ( .4

) ( .

42- 5 04 01 / 2 : 09 ( 53 1 4

53

01

) 01

Fb = m s g - ( Fg ) = 5 10 - 40 =10 N s3

0001 / 3

52- 3

(

0001 / 005 /

3

3

057 /

: ) 3331 / 3 052 / 3 s = 750 kg/m

(Vol )1 L g = Vol s g

3 Vol L = Vol s 4

3 1000 = s 4

62- : ) ( . ) ( . ) ( . ) ( . ) ( . 72- A , B , C : ) ( < A < B . C ) ( > A > B . C ) ( = A = B . C ) ( > A < B . C ) ( < A > B . C 82- 009 / 3 0001 / 3 : ) 09 % 01 % 001 % 08 % 02 % ((Vol )1 L g = Vol s g 009 (Vol )1 1000 = Vol 1) (Vol 009 = % 09 = Vol 0001

= 01 % 92- : ) ( . ) ( . ) ( . ) ( . ) ( . 03- :5

) ( . ) ( . ) ( . ) ( = F / A ) ( . ) ( . 13- F : A

) ( F A P . ) ( . 23- : ) ( ) ( . ) ( . ) ( ) ( . 23- : ) ( . ) (

43- [ ] 53- [ ] 63- [ ] 73- 6002 67.0 . 0

mC

4

) 08 008 0008 (

1- 0991 . . : 2- 4991 : 1- :

6

2 A1 v = 2A 1v

:

: :

2- :P = Pa - g h : P = Pa + g h 3- 6991 : . : .

4- 7991 : : 5- : : 1- 6991 2- 1991 . . 3- 6991

= 4-

=

5- 6991 ) ( 6- 7991 = 7- 7991

= 8- 9-

=

=

=

7

1- 5991 ) ( ) ( ) ( . . .2

2- 6991 3- 8991 : : ) ( : ) (2

1- / 2- / . .3 2

: . / 2 : ) ( : /

3: /

3- 7991 : . . / / . 1002 5002 . : 0 1- f P a=P f a

:

2- F P A=P F A

:f F = =P a A A F= f a

3- =

f F

8

: 0 : 0 6991 0002 : 0 0 ) ( 0 0 0 0 0 0 F = P A 0 0 P = Pa + h g h 0

9

P = Pa + h g 0

0 0 )67.0 ( 0 ) 43.01 ( 0 P = Pa + h g 0 0 0 0 0 0 0 0 0 01

0

=

A a

:

0 0 0 0 0 0 . 0 0 0 0 0 . 0

11

0 0 0 0 0 2A1 V1 = n A2 V . ) ( 0 2A1 V1 = n A2 V 0 0 0 0 ) ( 0 ) ( 21

0 0 0 )(0 0 0 2v r 0 0 0 :-- 1- 0 3- 0 02-

0 0 : 1- : 31

2- . 3- : : 1- ) ( .3

2- = 00631 /

) ( 00631 3- ) ( = 8.7 8.73

= 8.7 0001 = 0087 / 4- 7.2

7.23

= 7.2 0001 = 0072 / 5-

6- . 7- 5 501 2

= 5 501 / 8-

2

9- = 501 2 / = 501 2

= 501 2 N 01- 67 67 11- = 310.1 501 310.1 21- 3 41

= 3 310.1 501 = 501 930.3 31- = 5 5 = 5 310.1 501 41- 0 51- 61- = 001 001 71- = 005 005 81- = 02 02 = 02 91- 03 = 03 02- = 0002 0002 12-

22- 32- 42- = 30.0 / = 30.0 51

52- 62- 72- 82- . - 2 . .-1

92- = 100.0 -1

100.0 03- : 13- 51 = 51 / 23- 33- : 1- 2- . : Fb = V L g 3- . : 4- 61

: 5- : Fb = V L g 6- : . 1- . : : = = 2- 1- : : ) ( ) ( ) ( 2- : ) ( : 0401 3 Kg / m 0601 3Kg / m

71

) ( : 0201 3 Kg / m 3- 4- . 2

3- / .

3

2- /

1- / 2 ) (

:

5- h : h ) ( x ) (A ) ( h * * ) ( x ) ( h )A m = V Fg A ) Fg = mg V = A h Fg = A h g Ahg = = P A

P = h g ) ( Pa : = P + Pa h g PhP

) ( ) (

1- ) : ( h 2- ) : ( 3-

81

6- - ) ( P P ) ( h : = P Pa h 7- - ) ( P P ) ( h : P = h g = g + Pa h g = g

h 8- . . 1- U 2- ) ( C * ) ( AD ) ( ho * ) ( AD ) ( hw ) = ( A ) ( D hw w = ho o Pa + ho o g = Pa + hw w g Pa o w ho hw

O h = W W hHg

9- 91

) = 31 ( :

Hg W

=

hW hH g

1 3 hW = 1 hH g

hW = 1 3 hH g

31 01- 1- U 2- 3- A , B : B = A 1- : = + B P > Pa P < Pa + P = Pa P = Pahg hg 2- : 11- 1- . : : ) ( : 2- ) ( 02

) ( 21- =A a

=

1y 2y

31- : ) ( A ) ( a : :

f ) ( F ) ( 1- f P a = Pf a

:

2- F P A = PF A

:

3- = := P f F = a A = F A f a

f F 41- . . 51- .12

1- ) ( Vol ) ( A ) ( h 2- 3- ) ( : : ( Vol g L

) ( ( L( Fg : = ( Fg

4- ) ( ) ( Fb ) ( P A 1 ( .. ( Fb = P A

2P = P1 - P P = h 1 g - h2 g

P = ( h1 - h2 ) g 2 (. ( P = h gFb = A h g ) 2 ( ) 1 ( P :

A h = Vol Fb = Vol g = ( Fg )L = 0 61- 1- : 2- : 3- : ) ( 22

) ( 4- : ) ( ) ( . 71- ) 1 ( )2( ) 2 ( . )1( ) ( : ) ( : : 0 81- . ) ( 91- ) ( . . 1- 2- 3- 5- 4- : 1- 1 A 2A = Qv 1A1 v 2- ) 1 ( A ) 1 ( Q ) 1 ( v 32

: ) (

3- ) ( : 1Qm = Qv = A1 v 4- 2 A : 2Qm = Qv = A2 v : = 1 A2 v2 A1 v2 A1 v = 1A2 v

2 A1 v1 = A2 v

) ( : 02- :A

1- ) : ( A v

2- ) : ( V 1 d

3- ) : ( d =F .d A.v F= Av d

12- . ) / 2 (-2

-1

1-kg. m-1.S3

-1

: -1 22- : ) ( 2

) ( . -1 /

) ( /

) ( /

...... 1- ) / 2 ( 3- : ) ( 2- : ) / 3 (

42

32- : ) ( ) ( ) ( 1- : ) ( 2- : ) ( 3- : ) ( 42- . . 0001 3 Kg / m 055 3 Kg / m 0687 3Kg / m : : : : 52- . : mg Volg g 62- . . : Q = Av Q = Av :

52

72- . : 1- 4 Kg 45 Kg 76 Kg = = 76 - 4 = 62.1 45 - 4 = 8 m3 01 51 = P 2N / m =r 22 5 01 45.7 = 2 4 7 8 = 4m 2 N

=

2- 51 301 / 2 .

3 01 51 = 2 F = P. A = P.r

3- 0001 2 Cm 0004 N F = 4000 N =P 2 A = 1000 104 = 0.1 m 0004 F = 2 = 40000 N / m 1.0 A

4- 4.3 . 310.1501 2 N / m 8.9 2m / s 0001 3Kg / m5 01 310.1 4.3 = P P = hg 2N / m =h 5 01 310.1 4.3 P = 41.53 = g 8.9 0001 m

5- 001 m . / 2 0001 3 Kg / m 01 2m / s 62

6 1= 0 00 01= P = h g 0 1 0 1 01

2N / m

6- ) 02 ( Cm 10 Cm 5 Cm 0005 3Kg / m . 01 2m / S 2A = 5 10 10-4 m=P 01 0005 6 01 02 01 5 F mg Vg = = = 00001 = A A A 4 01 01 5 2N / m

: :

: : 2A = 10 20 10-4 m=P 01 0005 6 01 02 01 5 F mg Vg = = = 0052 = A A A 4 01 02 01 2N / m

7- 0301 3 Kg / m 0001 2 Cm 01 2 m / S 310.1501 2N / m : : 5 2 5 8- 930.3 01 N / m 310.1 01 / N2N / m0 1 1= F = P. A 061 0 00 01 1 4

006111= 01 0301 1+ 5 01 310.1= P = Pa +h g0 1 1= 61 N

5 250.4 = 5 930.3+ 5 01 310.1= + P = Pa P 01 01

2m

2N / m

=P

5 01 250.4 4= 5 01 310.1

atm

9- 1 Atm 3 Atm 0001 3 Kg/ m 310.1501 2N / m2

01 /

2 = 1 3 = P

atm 2N / m m

5 01 620.2 = 5 01 310.1 2 = P P = hg = h

5 01 620.2 P = 62. 02 = g 01 0001

01- 05 02 ) 00631 / 3 0001 / 3 01 / 2 (P = Pa + h1 1 g 1 P2 = Pa + h1 1 g + h2 2 g 00272 = 01 00631 2 01 02 = P = P2 P 1 = h2 2 g 2N / m

72

11- 2.0 m 3

0001 / 3

01 / 2 00631 /

P = Pa 1 P2 = Pa + h1 1 g + h2 2 g P = P2 P1 = h1 1 g + h2 2 g 00273 = ) 01 00631 2.0 ( + ) 01 00011( = P 2N / m

21- . . : 12 0522 = 7

. 0001 3 Kg/m 8.9 2m/s

2 P = hg = 50 1000 10 = 5 10 5 N / m

5 01 5 = 2 F = P. A = P.r

22 2 01 12 7

(

)

2

00396 =

N

:

31- 04 m . 08 Cm 0301 3 Kg / m 01 2 m / s 2 P = hg = 40 1030 10 = 4.12 10 5 N / m

: 5 01 21.4 = 2 F = P. A = P.r 22 2 01 04 7

(

)

2

5 01 2.0 =

N

41- U 1 2 Cm 2 2 Cm 0001 / 3 008 / 3 5 Cm

82

hO O = hW W 0 0 0 1 5 1 0 2 8 0 0= hW = hW 0 0 8 2 0 1 5 0001 hW = 4 C m

hW = 4 1 0 2 m

51- . 5.0 Cm 0001 3 Kg / m 008 3Kg / m

61- U 2 2 Cm 9 3 Cm 6.3 Cm 0001 3 Kg / m 009 3Kg / m6.3 = 2h Cm

= 1h

9 V 5.4 = = 2 A

Cm

2 h1 1 = h2

0001 6.3 = 1 4.5

008 = 1

3 Kg / m

3 h1 1 = h3 009 34.5 800 = h 4 = 3h Cm

8 = 4 2 = 3V = Ah

3 Cm

6 01 8 = V

3m

71- U 91 Cm 0001 3Kg / m 008 3Kg / m

92

hO O = hW W 0 0 0 1 2 0 1 9 1 =0 0 8 hO = hO 0 0 0 1 2 0 1 9 1 00 8 m hW = 2 3.7 5 C m

2 0 1 5 7.3 2 = hO

81- 67 Cm Hg 51.47 Cm Hg 002 m 00631 3 Kg / m 8.9 2m / s = 2 h1 1 = h2

2 ( 76 74.15) 10 2 13600 = 200 = 200631 2 01 58.1 852.1 = 002 3 Kg / m

91- 02 . 501 00631 / 3 01 / 2 . P = Pa hg 08279 = P 2N / m Par ) 01 00631 2 01 02 ( 5 01 = P

5 01 08279 = P

02- 52 Cm 2N / m 310.1501 2 N / m 01 2 m / s 00631 3Kg / m = h p g 00043 = 01 00631 2 01 52 = P 2N / m

: 2N / m

P = Pa + p

003531= 00043 + 5 01 310.1= P

03

12- 10.0 . / 2 8.9 2 m / s 00631 3Kg / m 67 Cm Hg 63 67.0 = Pa = hHg g 8. 2 21 1= 8.9 00 1 9 00. = 0.0+ = + P =Pa P 1 1 1 1 a tm

2N / m

: :

2 2 0 0.1= P 911 1

0 2 1= 8. 530

8 7. 2

2N / m

22- 63 Cm : ) ( 2N / m ) ( Atm ) ( Cm Hg 11= 3+ 67= P = Pa +h 6 2 7 6 11 2 = P C H m g C H m g 1 P atm 2N / m C H m g atm

2 1 11 4.1= 37 7 6

5 294.1= 5 10. 74.1= P 01 3 1 3 01

32- 01 2 Cm 001 N 008 2 Cm 01 2 m / s : ) ( ) ( F A = f a mg A = f a

) ( 2 Cm008 01 m = 01 001 : m = 800 K g

) ( ) ( :

=

008 A = 08 = a 01

) ( 2 Cm=1y 2y =0 8 1y 2 y1 = 1 6 0 C m y1 = 1.6 m

42- 42 Cm , 2 Cm 0002 N , r = 1 Cm R = 12 Cm :2F R = 2f r )21( 2 R = 2 = 441 = r 2 )1(2

)2 1 ( 0 0 0 2 2 = f )1(

2

f = 1 3.8 8 N

:13

52- 2 002 42 01 / 2 ) 41.3 = ( : 2- . 1- . 3- . ) ( 2F R = 2f r 2m g R 2 = f r 441 01 m = 002 1 m = 2880 K g

=

)21( 2 R = 441 = 2r 2 )1(2

) ( : ) ( =

=P

f 002 = 2 = 6.36 10 5 N / m 2 4 r 01 1 41.3

62- 2 Cm 24 Cm : ) ( 0882 N ) ( 1 Cm 2F R = 2f r )2 1 ( 0 8 8 2 2 = f )1 (2

f = 20 N

) (

1 Cm1R 2 y = 2r 2 y 11 4 4 y = 2 1 y1 = 2 8 8 C m y1 = 2.8 8 m

72- 2 Cm 23 Cm 0081 Kg 01 41.3 = ( m/s2 ( = =P F mg 01 0081 = = 2 A R 2 01 61 41.3

(

)

2

2 = 2.239 10 5 N / m

82- 4 01-4 2 m 002 0021 2 Cm 01 / 2 : 1- . 2- .23

) ( F A = f a mg A = f a 01 0021 01 m = 002 4 01 44

: m = 6000 Kg

=

92- 2 2Cm2 50 Cm . 4 2( Cm ( g = 10 m/s =4 01 05 A = 52 = a 4 01 2F A = f a

4 01 0021 A = 003 = a 4 01 4

) ( :

) ( : ) ( : f = 400 N mg A = f a 4 01 05 01 0001 = f 4 01 2

m = 1 1000 = 1000 Kg

) ( :=1y 2y =5 2 1y 4 y1 = 1 0 0 C m y1 = 1 m

03- 4 01-4 2 m 002 N 02 01-4 2 m :F A = f a mg A = f a 4 01 02 01 m = 4 01 4 002 m = 100 K g

01 2m / s

13- 1.0 3 m 029 3Kg / m 028 3 Kg / m 01 2m/s = = ) = (028 = 01 028 1.0 = Fb = VOl L g N

33

23- 04 Kg . . 0001 3 Kg / m 01 2m / s = Fb = ( Fg ) S 3 VOl = 0.04 m VOl L g = mS g

:04 = 0001 VOl

= = 40.0 3m004 = 01 0001 40.0 = Fb =VOl L g 004 = 01 04 = Fg = mS g N N

:

: = Fb = Fg = 400 N

33- 029 3 Kg / m 01 Kg 0001 3Kg/mFb = ( Fg ) S

(VOl ) 1 L g = VOl S g

1 ) (VOlVOl

=

029 S = 0 0 29 = 0001 L

: 8 %Ol S

01 Kg F = ( F ) + mg V g = V g + mgb g S Ol L

01+ 029 VOl 1000 = VOl

3 VOl = 0.125 m

43- 04 02 0001 / 3 . . Fb = ( Fg ) S AL1 L = mS L1 = 0.125 m

(VOl )1 L g = mS g 0001 1( 0.4) 2 L02 =

:

Fb = ( Fg ) S + mg

1 VOl L g = mS g + mg 2 m = 12 Kg

1 3 ( 0.4) 1000 = 20 + m 2

:

43

53- 02 0002 Kg 02 m 01 m 01 2m / s : ) ( . ) ( 0001 3 Kg / m . 00004 = 0002 02 = m S Kg

:

= ) ( .Fb = ( Fg ) S

(VOl ) 1 L g = mS g

00004 = 0001 1 ) (VOl

3 (VOl ) 1 = 40 m

) ( 0001 3 Kg / m .= 1h

1 ) (VOlA

=

04 = 0.2 m 01 02

63- 3 m 2.5 m 5.1 m 0072 Kg 01 2 m / s :3

) ( 0001 /

) ( 1 m2

= 3 5.2 = 5.7 3

) ( 0001 /

Fb = ( Fg ) S Ah1 L = mS

(VOl ) 1 L g = mS g0072 = 0001 17.5 h h1 = 0.36 m

) ( 1 mFb = ( Fg ) S + Fg VOl L g = mS g + Fg 7.5 110000 = 27000 + Fg A 2 1000 10 = 2700 10 + Fg h 00084 = Fg N

73- 5.2 N 0001 / 3 0088 / 3 01 2m/s = Fb = VOl L g

= :01 0001 2.5 = VOl 3 VOl = 2.5 10 4 m

53

: 83- 008 / 3 8 3 2- .2

mS =VOl S = 2.5 10 4 8800 = 2.2 Kg

1- . 8 10 6 1000 = mS

:

0001 / 3 01 / Fb = ( Fg ) S

(VOl ) 1 L g = mS g

mS = 8 10 3 Kg

1- :

= VOl

3 01 8 m S = 3 = 1 10 5 m S 008

:

2- = 2 ) (VOl= VOl (VOl

1)

3 = 1 10 5 8 10 6 = 2 10 6 m

93- 567 576 5.256 0001 / 3 . ) 01 / 2 ( . = Fb = ( Fg ) S ( Fg ) S

VOl L g = mS g m g S 3 VOl = 9 10 5 m

3 01 576 3 01 567 = 0001 VOl3

= = 9 01-5 : :

= S

3 01 567 m S = 3 = 8500 Kg / m 5 VOl 01 9

Fb = ( Fg ) S ( Fg ) S

VOl L g = mS g m g S

3 01 5. 256 3 01 567 = 9 10 5 L

3 L = 1250 Kg / m

04- 052 gm 061 gm 081 gm 0001 3Kg / m 01 2 m / s . = Fb = ( Fg ) S ( Fg ) S

VOl L g = mS g m g S 3 VOl = 9 10 5 m

3 01 061 3 01 052 = 0001 VOl

63

= S

3 01 052 mS = 3 = 2777 .77 Kg / m VOl 5 01 9

: :

Fb = ( Fg ) S ( Fg ) S

VOl L g = mS g m g S

3 01 081 3 01 052 = 9 10 5 L

3 L = 777 .77 Kg / m

14- 2N 1.8 N 2.549 N . 2

0001 / 3 01 / = = Fb2 = 01 0001 VOl 3 VOl = 2 10 4 m

2 = VOl L g

8.1 = VOl L g

8.1 = 01 2 10 4 L

3 L = 900 Kg / m

945.2 = VOl L g 945.2 = 01 2 10 4 L

3 L = 1274 .5 Kg / m

24- 52.0 N 1000 = / 3 2.0 N s 01 2m / s = Fb = ( Fg ) S ( Fg ) S

VOl L g = ( Fg ) S ( Fg ) S

2.0 52.0 = 0001 VOl

= mS

) (Fg

3 VOl = 5 10 5 m

g S

=

52.0 520.0 = 01

Kg

= S

mS 520.0 = 3 = 500 Kg / m 5 01 5 VOl

:3 5

4 5

34-

Fb = ( Fg ) S

. 0001 3Kg / m =

(VOl ) 1 L g = VOl S g1

Fb = ( Fg ) S

3 VOl 1000 = VOl S 5

1

3 S = 600 K / m

(VOl )1 L g = VOl S g

4 006 VOl L = VOl 5

3 L = 750 K / m

44- 1.0 Kg 0004 3 Kg / m 008 3Kg / m 01 2m / s= VOl mS 1.0 = 6 01 52 = 0004 S 3m

=

73

Fb = ( Fg ) S ( Fg ) S

= = ) ( VOl L g = mS g m g S m = 0.08 Kg S

25 10 6 800 = 0.1 m S

54- 21.0 Kg 0587 3 Kg / m 0001 3 Kg / m 01 2m / s= VOl 21.0 mS = 5 01 25.1 = 0587 S 3m

:

Fb = ( Fg ) S ( Fg ) S

= = ) ( VOl L g = mS g m g S m = 0.119 Kg S

1.52 10 5 1000 = 0.12 m S

64- 400.0 3 m 300.0 3 m 8.0 01 N 01 / m 2 s 0001 3Kg/m = 300.0 2) m3 = ( VOl = 400.0 m3 = VOl = 008= 0001 8.0= S3K / m g

= = 100.0 1) (m3 = VOl

= ) + ( VOl L g = {(VOl Fb = ( Fg ) S + ( Fg ) L ( Fg ) S

[

[

)1 S g } +{(VOl ) 2 L

]

2

g ( Fg ) S

]}

01 01 008 300.0 + 01 0.004 1000 10 = 0.001 S 40 24 +10 = 0.01 S

0062 = S

3 Kg / m

74- 05 Kg 54 Kg : ) ( Fb = ( Fg ) S ( Fg ) S

) (

0001 3 Kg / m 01 2m / s Fb = mS g mS g

05 = 01 )54 05 ( = Fb

) ( : ) ( :

Fb = VOl L g 01 0001 50 = VOl 3 VOl = 5 10 3 m

83

84- 90.0 / 3 41 401 3 : 92.1 / 3 501 2

01 /

5 01 60. 81= 01 92.1 01 41= Fb =VOl g4

N

5 01 62. 11= 01 90.0 4 01 41+ 01 5 01= Fg = mg +VOl g 5 01 8.6 = 5 01 62. 11 5 01 60. 81= Fb = Fb Fg

= = + N

= N

94- 31 401 3 290.0 3 Kg / m 82.1 / 3 8 401 Kg2

01 / N

4 01 4. 661= 01 82.1 4 01 31= Fb =VOl g

4 01 69. 19 = 01 290.0 4 01 31+ 01 4 01 8 = Fg = mg +VOl g 4 01 44. 47 = 01 69. 19 01 4. 661= Fb = Fb Fg4 4

= = + N

= N

05- 2 01-4 0001 / 3 . 7072 / 3 ) 2( g = 10 m / sec :Fb = Fg Vol L g = m s g 2 10 -4 1000 = m s m s = 0.2 kg

= Vol

ms

s

=

2.0 3 = 7.388 10 -5 m 7072

:

= = 3 2 10 -4 - 7.388 10 -5 =1.26 10 -4 m

15- 45.0 23.0 7.2 0001 3 kg/m 01 2m/s = s = 2.7 1000 = 2700 kg/m3

=

93

) Fb = ( Fg ) s - ( Fg s 01 2.2 = VoL= VoL ( Fg ) s5-

23.0 - 45.0 = Vol L g3

22.0 = 01 0001 VoL

m

s g

=

45.0 3 = 2 10 -5 m 01 0072

= - 3 = 2.2 10 -5 - 2 10 -5 = 2 10 -6 m 25- 10.0 3 m 006 3 Kg / m 0001 3 Kg / m 01 2 m / s : ) ( ) ( ) ( Fb = Vol L g =0.01 1000 10 =100 N ) ( ) ( 006 10.0 - 001 = FT =Fb - ( Fg ) s =100 - VoL L g 10 =40 N 0= Fb =( Fg ) s =Vol s g .01 60 =60 N 01 0

) ( : : :3 ( VoL )1 = 6 10 -3 m

Fb = ( Vol )1 L g

01 0001 1) 60 = ( VoL

= - 01 6 - 10.0 = 2 ) ( Vol3-

3- 01 4 =

3m

35- 46 Kg 0008 3 Cm 67.0 301 3Kg / m . . 45- 04 Kg 0005 3 Cm 067 3Kg / m ) ( . ) 8.9 / m 55- 5 Cm 61 301 Kg 0001 3 Kg / m 029 3Kg / m 04

. : ) ( 2( s

.

2 5

65- 5 01-3 3 m 0001 3 Kg / m

. 75- 01 Kg 4 % . 5.26 Kg 0001 3Kg / m 85- 061 N 021 N 8.0 95- 1 01-5 3 4 201 / 3 100.0 2m ) ( ) ( ) 5.1 301 / 3 ( 06- 05 3 Cm 04 3 Cm . 0001 3Kg / m 16- P h P h h P 4 4.1 21 8 8.1 x 61 .2 6 02 3 :14

1- ) ( x 21 .2

2- / 3- ) 8.9 / 2 ( .

26- ) ( P ) ( h . ) ( h ) / 2 ( 01 P5

4 4.1

8 8.1

21 2.2

61 b

02 3

) ( P ) ( y ) ( h ) ( x : 2- . 1- ) ( b 61 . 3- . . 03 ) ( h 4 ) / 2 ( 01 P5

) 01 / 2 ( .

36- ) ( P ) ( h

52 5.3

02 3

51 5.2

01 2

5 5.1

) ( P ) ( y ) ( h ) ( x 1- . ) 01 / 2 ( . : 2- .

46- : (N 065 008 0821 023 061 ) ( N F f : ) ( ) ( 06 N ) ( 5 Cm 08 05 53 02 01 )

24

56- 4002 5.0 4.0 / 2.0 52.0 / . 66- 7.0 Cm 33.0 m / s 53.0 Cm 03 76- 08 1.0 mm 530.0 Cm 440.0 m / s . 86- 5.0 Cm 4.0 m / s 2.0 Cm 52.0 m / s .

96- 2002 : 03 = 2 / = 4 / = 3 / 1- . 2- . 07- 2.1 Cm 3 m / s 72 m / s34

02 51 01 5 . :

17- 8991 01 5.2 1 / . 41.3 = 3

. 0001 /

27- 3991 5.1 2.0 / 5.0 : 1- . 2- ) 41.3 = ( 37- 2 Cm 1.0 m / s 1 Cm ) ( ) ( ) ( 3

0001 /

47 2991 4 2 01 / 1 2 . 57- 4 01-4 2 2 / 2 01-4 2

44

67- A 01 2 Cm B 2 2Cm A 21 m / s B 77- 200.0 m3 / s 1 2Cm

54