A moving train car collides with another train car that is motionless on the track. The train cars are the same
size. How does the final momentum of the two cars compare to the momentum of the first car?

a. Momentum is doubled. b. It is zero.

b. It is zero

c. They are both added together Md. It is half the beginning value.

d. It is half the beginning value.

Aregular polygon has angkes of size 150° each.how many side has the polygon

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line