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研究液体内部压强实验的装置如图所示。将压强计探头分别放入水和盐水中,改变探头朝向和浸入深度,观察U形管液面高度差并记录,如表所示。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

次数

探头朝向

探头浸入深度/cm

U形管液面高度差/cm

盐水

5

5

5

5

5

5

5

5

10

9

20

17

5

6

10

11

20

20

  

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