If two object experiences the same displacement at the same time, the two objects must have the same average velocity.
The average velocity of an object is defined as the change in displacement per change in time of motion. This can be written as follows;

If two object experiences the same displacement at the same time, it means that the change in displacement with time is constant.

Thus, we can conclude that if two object experiences the same displacement at the same time, the two objects must have the same average velocity.
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Frequency = velocity/wavelength
Frequency = 10/20
Frequency = 0.5 Hz
        
             
        
        
        
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Answer:
65.14 Hz
Explanation:
We have given the capacitance 
And the capacitive reluctance = 268 ohm
The capacitive reluctance of a capacitive circuit is given by 



