A 4 kg ball is traveling to the right at 2 m/s. A 6 kg ball is traveling to the left at 4 m/s. . If the velocity of the 6 kg ball is 0.8 m/s to the left after the collision, what is the velocity of the 4 kg ball after the collision?

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.