When two waves with the same amplitude overlap so that a crest lines up with a trough, the resulting wave...

Increases

Decreases

Stays the same

Nothing happens

True or false graphs must include scales that increase by the same amount

What are two different ways you could find the value of a? explain these methods.

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.