13.47: Which one of the following choices best represents the magnitude ,x- xx .z) aog/qb(ha+nvml4s cm 7ts) of the angular momentum of the ,n s4lmvmh)+qgsat- z)x b/ .7xa(xcoEarth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following chvgsb7 9;i j1a0wtj 8-99zz ft7hitvpqoices best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated with its orbit aro0 gti -zw9pa1ztf ijh9vb;8 7sjt79vqund the Sun?

  11.40: A 2.0 kg particle travels at a constant spn4x8n iitoukb / v03d(eed of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular momentum calculated frobn8 u0 i/ (dn3tkxv4iom the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies the brakes q1rtrqffa+;lic 8 p i,2uickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the fol2,a; ip+f8ci t1lr rqflowing choices best represents the 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.uusl bf o .7 x.u7o9uwvdq(jh6+e)- ny,eyhg9 Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. What is thu(o 9o ,-eg.u 76weyn 7y bxd .uvjhl)uf+qsh9e 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. One disk has rad*s 49vq(o8t sb(tj/aixf(txh ius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to the disk, through its center. Given tiqsa bo(*s(x(hxtt v j9/tf84hat 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 ang8;wh 1gbh-ny v8n,u tcular momentum of a system to be constantcg8;n vt h 8y1buhwn-,?

  01.27: A spinning ice skater can increase his rate of rotnoksbew z660)da 1btd.yj j).ation by bringing his arms and free leg closer to his body. How does this procedure affect the skater's rotational momentum andjyad6.6 b. )j z edks)1wbont0 kinetic energy?

  03.32: A figure skater has a moment of in n--vn: m9mfiuertia 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 inertia of-3 rtxh*f33soqal o5x $5.0 kg.m^{2}$ 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 circle oehi;(1os0s ni n a horizontal frictionless table as shown. As the string is pulled very slowly through a small hol1shei;o(ns0 i e 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 h6cilsk b3jzd2;ugj3m-r( :a m collides with a thin rod pivoted at one end. The rod has mass M=2m, length L , and moment odu l3bzij c k6:jm(32-asrgh; f 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 wsyw9uj/j 5/m0 )wu b(z7en(j8t m hmbkbj8w 5mith 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. When equilibrium is established, the disks are spinning at the same rate. What is the angular speed of the db 8n(j09sj u/ze 85m/hjj7 uyt5)mm(kbbw wwmisks at equilibrium?