.


:




:

































 

 

 

 


,




 

, R1= 2 :

R1= 2 : ( ) (. 1.3 [1]) = 30 . , , ( ) ( ) (.1.6,[1]) - 285 /2,. = 60 () () () (. 1.10, [1]).

 

:
3.
20.
36.

 

8. , , R1.

, . (15 ÷ 25) .

, , , , R1= 2 , = 50

() () () (. 1.10, [1]) q = 50 R1= 2

60 .

.= . /. = 60 /50= 1,2 .

9. (t) , (t), , (t = t + t) , R2 .

(tj, (teun) , (. 1.11, [1]) ( 2, . 9, [I]) R2 = 20 100 / tH =0,15 . t = 0,1 . t = tH + t.= 0,25 .

 

10. ( ) (t,) R2 .

1 , / (. 1.15, [1]) - 100 / 1 R2 = 20 , = 210 /.

0,25 :

P(t)=P0(T/To)ˉ1.2

P(1)(1,8) = (0,25)ˉ1.2 = 210 (0,25)-1.2 =1108,39 /.

() (. 1.16, [1]) , = 1 , = 0,75

(0,72)1=(1)=831,29 /.

 





:


: 2016-10-07; !; : 503 |


:

:

, .
==> ...

1955 - | 1830 -


© 2015-2024 lektsii.org - -

: 0.01 .