Trong thí nghiệm tạo vân giao thoa sóng trên mặt nước, người ta dùng nguồn dao động có tần số 50Hz và đo được khoảng cách giữa hai cực tiểu liên tiếp nằm trên đường nối hai tâm dao động là 2mm. Bước sóng của sóng trên mặt nước là bao nhiêu? Em cần bài giải ạ

i need the answer to this too but idk it ; -;

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

answerdmitry mendeleyev made a workable classification of the elements