13.47: Which one of the folmsrwt1 3lu5n r-pr+t5riw j r 3mq*s:4lowing choices best represents the magnitude of the angular momentum of the 5j:+u lis3trnpq 1s*r4w mwm 5r-3trrEarth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best approximateshla2p(lqd: i 3 the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated with its orbit around t q(3:hp2ladilhe Sun?

  11.40: A 2.0 kg particle travels at a constant m nrum)u9- n0q./iuw e(;qnvsspeed 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 origiv/ mrn. nu)0nq w-(usm ie;9uqn( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She appliesx ,.twjaf0laa6 km 6fwo1f8e0 the brakes quickly bringing the bicycle to rest with the wheels rolling without slipping on the ground. Which one of the followin0fxt o wf0alm1e8, wf66akja. g 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 ss u.pkb3.r 0njpheres of mass M have radii R and 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. What3k..p 0rbnj su 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 materigw,y/d q0z;/ bt sb-vqal. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis s-t,q/;yzvdb /bg0wq 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 )bw tezd ast ,q8t8k/fzb 2+9pangular momentum of a system to be consta29zt/ ftbq8pzwas de,k8+ )bt nt?

  01.27: A spinning ice skater ca00w5sfy,iq8uo zvp)b n increase his rate of rotation by bringing his arms and free leg closer to his body. How does this procedure affect the skater's rotational momentum and kinetic e 08s5ou0,iqp bwfz) vynergy?

  03.32: A figure skater has a moment of pr09ab gyv(l *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 km(v1b ;40vcfbh xzxqyg7)/n 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 circle on a horizonpk35bt6n9qc g tal frictionless table as shown. As the string is pulled very slowlyk95tcq6npbg3 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 mas/ uk-vk kqeqhzbdcq5,;jb, ,- s m collides with a thin rod pivoted at one end. The rod ; 5k,, bkjqv zhe/qu- kdc,-qbhas mass 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 with mass M anx:9wrmhq;ehqxr9j/ cb 1s2 ;q d 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 tophc /q9h:e2 ;9wx ;jxqrm qs1br 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?