How would kinetic energy of the dominoes be affected if the first domino did not hit the second one?(((20 points)))

Not affected.

Explanation:

Kinetic energy of the dominoes not affected if the first domino did not hit the second one because no kinetic energy is lost due to no collision. If the first domino hit the second one, its kinetic energy decreases and changes in other form of energy such as heat and sound energy etc. But when there is no collision occur, then there is no change in the kinetic energy of dominoes.

i think it's c. i'm not sure but i think so.