13.47: Which one of the following choi//w9fk dx+:g o6cdqyisoro .:ces best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated wk.yx oow+if 6/od :g9c rs/q:dith its rotation about its axis?

  17.37: Which one of the following choices b7p i 7dbyfffw gc.g 3 qce6w6dy5go9,;est approximates the magnitude of the Earth’s angular momentum (expressed in base MKS unitg g., cigy 5fpq wf;ocf6b76dwdy3 e97s) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s0(heox:tk i5)z;;ogrlztko( 2w (by t along the line shown in the figure. What is the magnitude of the particle’s angular momentum calculated fr ) (k tr wzgbz((5;lht 0xto:eik2yo;oom the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies the brakewizpk4n(- b2dd)q(d znp5 y7v s quickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the following choices best represents the direction of the angular acceleration of the bicycle’s front wheel wbd nykn(z-d 4vpi5wpqzd) ( 27hile it is slowing to rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. Each sphere is ro6,.3zdovs7e c-z ii(dr;f q/kcf k,fotating about a fixed axis through a diameter. The roooir,.ifskdf6v7 -3dz c;/ ckf (,qz etational kinetic energies of the spheres are identical. What is the ratio
of the magnitude of the angular momenta of these spheres? That is, $\frac{L_{2R}}{L_R}$=?

  05.49: Two solid disks are made of the same material. sv-ehdeaqd(m5u:w6we 8r y5) One disk has radius R while the other disk has radius 2R. Both disks are rotating 5esv)-q6de 5hdwua8re :(w ymabout a fixed axis perpendicular to the disk, through its center. Given that the disks have equal kinetic energy, what is the ratio of the angular momentum of the disks $\frac{L_{2R}}{L_R}$

  17.24: What condition must be met for the angular momemn cp6o3 9v(dsn )lp(bntum of a system to be constant?(b9)nm6 vndpcspl3o (

  01.27: A spinning ice skater can increase his rate of9)o5 jwvtog)+wi)t- gpq h.ag4b bwu6moy/s6 rotation by bringing his arms and free lep.owg)wgu+ 6ts9b6tj ) og5ihbq4y v/-om)wag closer to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a + z1+;ea0xr)lgk wi j6qa ni7umoment of inertia of $5.0 kg.m{2}$with her arms outstretched. If she begins a spin at 2.0 rad/s with her arms outstretched and then brings her arms in tight to her body, her rate of spin increases to 8.0 rad/s in 3 seconds. Friction and wind resistance can be considered negligible.
What is the change in the skater's angular momentum as she brings her arms in tight to her body?

  0.33: A figure skater has a moment of inerd dgp1hnj tv497g7x h ,obds/,tia of $5.0 kg.m^{2}$ with her arms outstretched. If she begins a spin at 2.0 rad/s with her arms outstretched and then brings her arms in tight to her body, her rate of spin increases to 8.0 rad/s in 3 seconds. Friction and wind resistance can be considered negligible.
What is the skater's angular acceleration as her arms are moved in during the three second interval?

  06.23: An object m, on the end of a syaqocfs+/s l+ +se1 6mtring, moves in a circle on a horizontal frictionless table as shown. sso/+ l6ae+qysmfc+ 1 As the string is pulled very slowly through a small hole in the table, which of the following is correct for an observer measuring from the hole in the table?

  08.40: A point particle of masss; 2 l-vmo0jix m collides with a thin rod pivoted at one end. The rod has mass M=2m, length L , and moment of inertia j2vi mlx;o0s-$I=\frac{1}{3}ML^{2}$ . The particle moveshorizontally with speed V when it hits the bottom of the rod and sticks to it. What is the speed of the particle immediately after collision?

  09.42: A uniform, solid di po0nsoy b7)a3-b ml3ask with mass M and radius R is rotating on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis through its center. A second uniform solid disk of mass 2M and radius R/2 is placed from rest directly on top of the first disk so that the centerso3p lmn0os3)ba- yb 7a of the disks line up. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?