Two cars collide in a parking lot.  Ted's car of mass 1530 kg is travelling at 60.0 km/h [N15E]; Davis's car with a mass of 2580  kg is travelling at 15.0 km/h [E60S].  If the vehicles collide in a completely inelastic collision, What is their combined velocity just after the collision? How much energy is converted into heat, sound, and deformation of the cars in the collision?

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