Two train cars of identical mass 10 Kg each collide and move off in opposite directions. The first car was initially traveling at 2.0 m/sec and the other car was initially at a velocity of 3.0 m/sec left. After the collision, the first car is traveling at a velocity of 2.5 m/sec as it moves to the left. What is the final velocity of the other train that is traveling in the opposite direction?

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.

Mass / weighthope it !

1) what is light? light is an electromagnetic wave visible to the human eye.  2) what is a reflection? the rebounding of a light ray when it hits a mirror.3) what is the incident ray? contacts the surface of an object.4) what is the reflected ray? bounces off a reflective surface.5) what is the normal ray? perpendicular to the surface of a mirror.6) what is the angle of incidence? an angle formed by the incident ray and the normal.7) what is the angle of reflection? an angle formed by the reflected ray and the normal.8) what is refraction? (bending.)9) what is a converging lens? bring together light rays that pass through.10) what is a diverging lens? spreads out light passing through.11) focal point? the real point where the refracted rays meet when the incident rays run parallel.

Answerit causes heavy precipitation for a short period of time