A 120,000 kg train car moving at 4.5 m/s (about 10 miles/hr) collides with another train car of mass 130,000 kg. What would be the velocity of the two if they couple together and the second car was moving at 2.0 m/s in the opposite direction before the collision?

Texas-flood watch and coastal flood barrierscalifornia-try and look for under ground water stream 

Aand b antarctica is a north pole.  field lines enter earth near the north pole.the magnetic pole near antarctica is a north pole.compasses point toward a magnetic pole that is a north pole.field lines circle earth from east to west.a compass can lead a hiker to the geographic north pole.

C. hope this . : )

Could you display the mirrors