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23、(16分)解:(1)由动量守恒得:  

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22、(12分)3.2m

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②a=4.8m/s2;乙;a《g

Ⅱ、(10分)(1)3Ω。

(2)①BGF;②电路如图

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21、(20分)Ⅰ、(10分)(1)B, 1.34cm

(2)①甲,方便操作(阻力小、仪器少,误差小)

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31、(10分)(1)                                           

                                       

(2)                             

                            

                                                       

(3)                                           

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

铜陵三中2009届高三第八次月考理科综合能力测试答案

1

2

3

4

5

6

7

8

9

10

A

B

C

A

D

D

C

A

C

D

11

12

13

14

15

16

17

18

19

20

D

A

C

B

C

D

A

B

C

B

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30、(20分)(1)①        

             

                    

(2)①                        

                       

                  

 

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29、(24分)(1)               。   

(2)                           (CO2mg/l00cm2叶?小时)。

(3)       mg,       

(4)                             

(5)                     

(6)                                              

 

 

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28、(14分)(1)                                                    

(2)                                                     

(3)                                       

(4)④                                                                                    

              ⑦                                                                                      

 

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27、(14分)①B                      、D                        、E                 

       ②                   

       ③                                                                                                                         

       ④                                          

 

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26、(10分)(1)(    )

(2)                                      

   (3)                

   (4)(    )

 

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