A 0.25 kg lump of putty is thrown to the east at 7.0 m/s. The putty collides with a 1.5 kg block that is moving west at 0.5 m/s. The putty and block stick together after the collision.

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.