I WILL NAME YOU BRAINIEST PLEASE HELP 5. Law of Conservation of Momentum states that momentum of the system
before the collision is equal to the momentum of the system after the collision
unless an external force acts on the system.
Consider two cars with mass of 1 kg each.
Before the collision: Car A is moving to left right (-10 m/s), Car B is moving to
the right (20 m/s). Be careful with the sign.
After the collision: Car A and Car B are stuck together.
What is the velocity of the two cars after they are stuck together?
A. 5 m/s to the left( v = -5 m/s)
B. O m/s
c. 5 m/s to the right (v = 5 m/s)
D. 10 m/s to the right (v = 10 m/s)

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.