The speed is 0.2 meter per minute.
There is not enough information given in the question to determine the velocity.
As mass increases, the potential energy also increases, I hope that helped :)
If the two waves have the SAME FREQUENCY and are exactly
out of phase (180° apart), then the resultant wave will have the
same frequency and an amplitude of 1 unit.
If the two waves do not have the SAME FREQUENCY, then their
relative phase is meaningless.
Answer:
I think it might be A: Alec but tell me if I'm wrong
Explanation: