A 3400-kg truck traveling with a velocity of 20 m/s due south collides head-on with a 950-kg car traveling with a velocity of 10 m/s due north. The two vehicles stick together after the collision. After collision, the two vehicles move due north.

The best answer is (a) which is universal law is in effect at all times. it is constantly at play in everything we do and governs our lives. it is also important to note that universal law applies to not only everything on earth, but everything in the universe as well, which is another reason why it is in effect at all times.

The independent variable in this experiment is the angle at which the light from the ray box strikes the mirror.hope this .

Ibelieve the answer is arteries