13.47: Which one of the following choices best represen3ny ybrv,:bop h eu:t nx9l*:5ts the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotat:nteb ,r3 np:9h5yxv bu *lyo:ion about its axis?

  17.37: Which one of the following choicesrgq 37e7n gb ms dl8nkm*lc,j;a5 l:h/ best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated with itj a hm*egkqbmlcl3:n5,7sd;l8n 7/r gs orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along the lie(wfgkj/f u)zy)s8-hne shown in the figure. What is the magnitude of the particle’s angular momentum calcu) (z gej-8hf yfs/)kuwlated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She .c,t. qvybk :zapplies 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 the direction of the angular acceleration of the bicycle’s front wheel while it is slowing to rest from Mary’s p cby.:q z,t.vkoint of view?

  03.41: Two uniform spheres of mass M have racoqfn/v:o/ nl: b.2iidii R and 2R. Each sphere is rotating about a fixed i:o:/b.fvn 2i/n oc qlaxis 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 ka 9,16xt)h2hwehn x a9)sgde made of the same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating abough)e) t 69hah ax skenw,d29x1t 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 f0 s-j sojf7/0 pb.ul7m4 rwkhhor the angular momentum of a system to be constamh uj0.bf4-p s70/s7lrwjkho nt?

  01.27: A spinning ice skater can increase his rate of rotatn*wmcv; 0cpd6 g12h wyfzt4*tion by bringing his armz y1vc*cd;mw tp wh0nt*gf264s and free leg closer to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment oc 7o-h j +1+vrsojdy c)-w*s;yv5f tysf 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 h0anm2f-ty8: zthuh-yv: okl 1as a moment 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 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 string, moves in a circl* 0i lgbddngps vk(4(7e on a horizontal frictionless table as shown. 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 inp70idk v*gdsgb nl(( 4 the table?

  08.40: A point particle of mass m collides with a thin rod pivoted avf-r,i +)/ f9zfrb4 20w wsjh mdivm6rt one end. The rod has mafz+-wv bm46,90wr2iirfrmv) hdj/fs ss M=2m, 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 disk wit *h 54wtoa5udzn anwd;s*aaf :zso5a* tit:1/h 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 of4waazw51 5ah;*d/tt nat az**:os5 d: siun centers 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?