Pls answer all questions

AP Physics 1 U11 - WS 1 - Rotation page 2 Unit 11 - Rotational Dynamics 5/3/21 9. An astronaut on the international space station (ISS) turns on his laptop. As the laptop boots up, the astronaut sees it begin to rotate counter clockwise. Why does this happen and what can you deduce about the laptop? 10. A hoop with moment of inertia / = 0. I Kg. m" spins about a frictionless axle with an angular velocity of 5 rad/s. At what distance from the center of the hoop should a force of 2 N be applied for 3 s in order to accelerate the hoop to an angular speed of 10 rad/s? Problems 11-12: A force is applied to a wrench to turn a bolt. The forces on the wrench are as shown, and bolts B, C & E have twice the rotational inertia of bolts A, D & F. ()25 11. Rank the torques on each bolt from greatest to least. 12. Rank the angular accelerations of the bolts from greatest to least. D 13. Jean stands at the exact center of a large, spinning, uniform disk of mass m, and radius R with moment of inertia / = 12 MR . As she walks from the center to the edge of the disk, the angular speed of the disk is quartered. What is Jean's mass m in terms of the disk's mass m.? (Note: the moment of inertia of a disk is 1/2 mr. Your answer will be in terms of M.) 14. A spinning plate in a microwave with a moment of inertia / rotates about its center of mass at a constant angular speed W. When the microwave ends its cook cycle, the plate comes to rest in time 4/ due to a constant frictional force F applied at a distance r from the axis of rotation. What is the magnitude of the frictional force F? 15. Four particles, each of mass M, move in the x-y plane with varying velocities as shown in the diagram. The velocity vectors are drawn to scale. Rank the magnitude of the angular momentum about the origin for each particle from largest to smallest. Problems 16-18: A small lump of putty of mass m moves with velocity v. The putty hits and sticks to a uniform bar of length L and mass M that is free to rotate about a fixed frictionless axis through its center. The bar has a moment of inertia /. Consider the following situations: a. The putty hits the bar in the center with a velocity perpendicular to the bar. b. The putty hits the bar halfway between the center and the end. C. The putty hits the bar at the end with a velocity perpendicular to the bar. d. The putty hits the bar at the end, but with a velocity at an angle of 45". e. The putty hits the bar "on end" - with a velocity parallel to the bar. 16. Rank the situations in terms of the final angular velocity of the bar. pivot point 17. How much energy is dissipated in the collision in situation "a"? 18. What is the final angular momentum of the putty and bar after the collision in situation "b"? In situation "e&quot