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The mass of the blue puck shown below is 35.0% greater than the mass of the...

The mass of the blue puck shown below is 35.0% greater than the mass of the green one. Before colliding, the pucks approach each other with momenta of equal magnitudes and opposite directions, and the green puck has an initial speed of 7.0 m/s. Find the speeds of the pucks after the collision if half the kinetic energy of the system becomes internal energy during the collision.

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