phy101 lecture for final exam

1:03:25

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21:39

کوتاه

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32:54

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6:08

37:04

کوتاه

1:45

12:44

13:57

5:14

27:21

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کوتاه

3:59

10:04

10:04

10:51

5:08

42:52

6:37

45:59

3:21

12:52

8:43

10:21

1:04:23

1:24:59

34:52

34:05

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19:40