13.47: Which one of /tpzszfc8 s(9 dx:3nrthe following choices best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) assoc z:txd(cspfs893nz /riated with its rotation about its axis?

  17.37: Which one of th/3o3aa p vj6ihe following choices best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associat a ip33vh6jo/aed with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant spej+s.v ; q3ltr.mfbw-led of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular momentum calculated from the origin( 3l+wm;. jtfl s. -rqbvunit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She appliebn)n6mf go,a3nj.y6x s the brakes quickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the following choices best represents theo6jf xnm ba 3).n6gy,n direction of the angular acceleration of the bicycle’s front wheel while it is slowing to rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. Ea j)-he :g8f2vpbf: racch sphere is rotating about a fixe -f: :)gvphr8faec2j bd axis through a diameter. The rotational 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 samg:+zb4wz+u lp e material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to the disk, through its center. Given that the disks have equal kinetic energy, what is the ratio of the angularz+uzbwp:lg 4+ momentum of the disks $\frac{L_{2R}}{L_R}$

  17.24: What condition must be met for ys,dzjx:1rcoce (vxg k 8;+;athe angular momentum of a system to be consz cko (sx1r;g: d;ya8e vc+,jxtant?

  01.27: A spinning ice skater can incrv:e pmxv4v0 *nease his rate of rotation by bringing his arms and free leg closenm:* x vvvp0e4r to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment km ,men (+nkx1of 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 ing1mu.t bi;iyxu,q0u( ertia 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 stri-2w6je ula 8fqq d:h .hlki.0rng, moves in a circle on a horizontal frictionless table as shown. As the string is pulled vef l2-awirq 0lh: ku. 6h8dq.jery 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 mass m collides with a thin rod piecrcaonhjy ;o6 ..s.,voted at one end. The rod has mass M=2mo y, ejhr6s.;nocc..a , length L , and moment of inertia $I=\frac{1}{3}ML^{2}$ . 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 dism-kzvc dx( o;3k 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 centers of the disks line up-ok(vxdc ;z m3. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?