13.47: Which one of the following choic l8mfi9z)rqh;)vx2bg 8v/ saces best represents the magnitude of the angular momentum of the Earth (expressed in base M s8;82)mqxiv/h zv afgbl)rc9KS units) associated with its rotation about its axis?

  17.37: Which one of the following choic89 qwggy bp6q1/ d3pdves best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) assoc9b 8d/wqgpqp1 dyv36 giated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along the l.7i4h5m8q dts9 a tlhqhw k/uuk ::p9xyk,zf,ine shown in the figure. l hu/u,:9tfi97h5q pa,8w kkm d4.s:zhkq txyWhat is the magnitude of the particle’s angular momentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies the brakes q; szvx3i 9m.eyy*,ajzuickly 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 slow sai*,z3e9yjvz.y; x ming to rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have rad:, efv:eqq17 l5zpkuw ii R and 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identizeqq :wf7p v:u,ekl 15cal. 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 thew:ags f4 y25n t:ii+*awb-7z ypkklt9 same 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 iy9k: p-niwk7+yz4gsw2taatib5 l f :*ts 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 momentum of a system o d5ka 96)xsgeny2m0 fto be constantgo) n 2m5s keyf0a9xd6?

  01.27: A spinning ice skater can increase his rate of rotation by)*h(cvgwhd:f ( hvii . bringing his arms and free leg closer to his body. How does this procedure affect the skater's rotational momentum and kinetiv( h *gc(i)h d:wi.fvhc energy?

  03.32: A figure skater hasmlqbg 4r)h5 82cfko lx,ff/ 3n 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 change in the skater's angular momentum as she brings her arms in tight to her body?

  0.33: A figure skater fgr2/ct- shau6 gwx uaj9 .y9/e /i5othas 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 stringd;b3t v7g3c;soxqdp lm)hpv9ua ( .-m, moves in a circle 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 th3h vvlp93;td bs;(udxac mopm- 7q .g)e hole in the table?

  08.40: A point particle of mass m collides with a thin rod pivottibbr 38rj*n8a1oni7q xg* 0 yed at one end. The rod has mass M=2m, lebbn r1 oiiyrn0*x*q8g83 a7tjngth 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 with08;hre v8,lrv le r7nrymmx1/ 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 uniform1vrl88ex m ;rlrn/ev y7r0m ,h 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. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?