8. A figure skater goes into a spin with arms fully extended. Which of the following describes the changes in the rotational kinetic energy and angular momentum of the skater as the skater's arms are brought toward the body?
Rotational
Kinetic Energy
(A) Remains the same
(B) Remains the same
(C) Increases
(D) Decreases
(E) Decreases
Angular Momentum
Increases
Remains the same
Remains the same
Increases
Remains the same
(A) Rotational Kinetic Energy: Remains the same, Angular Momentum: Increases
(B) Rotational Kinetic Energy: Remains the same, Angular Momentum: Remains the same
(C) Rotational Kinetic Energy: Increases, Angular Momentum: Remains the same
(D) Rotational Kinetic Energy: Decreases, Angular Momentum: Increases
(E) Rotational Kinetic Energy: Decreases, Angular Momentum: Remains the same