In a system with two moving objects, when a collision occurs ...

[imowrer]

In a system with two moving objects, when a collision occurs between the objects:
 a. the total kinetic energy is always conserved. b. the total momentum is always conserved. c. the total kinetic energy and total momentum are always conserved. d. neither the kinetic energy nor the momentum is conserved.

Question 2

A charge, +Q, is placed inside a balloon and the balloon is inflated. As the radius of the balloon r increases the number of field lines going through the surface of the balloon:
 a. increases proportional to r2.
  c. stays the same.
  b. increases proportional to r.
  d. decreases as 1/r.

[raenoj]

Answer to Question 1

B

Answer to Question 2

C

[imowrer]

Thanks for the timely response, appreciate it

[lindahyatt42]

Excellent