13.47: Which one of the following choices best represents the rfp8ua/0y des(-+pfkio,e-o magnitude of the angulara,op8pir-yfke od u(f/e+s- 0 momentum of the Earth (expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the follot 8j3 v0ex4qmto for+ ss.g6w7wing choices best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) as 0t+83wxq46 gjtmos se7orf v.sociated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s aloncc.q26 ks z;nxh -6tupg the line shown in the figure. What is the magnitude of the particle’s angular momentum calculated from the origin( unit 6k.hcp6 ts xnz2q-;uc: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies f, d 9bo/qe jq+oz64l/3 aqw+qqbt z*ithe 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 dir4e+bd+qi6 b3*fq9 ,qz/qlaotwz/ qoj ection 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. Each spj g6,as +maw,f; :h(9ek wmcjbhere is rotating about a fixed axis through a a6 ,wak efg(wm+,scmbjj; :9hdiameter. 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 same material. One disk has radius R6xhm-kfc495p 5hven a 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 ha f 4-xv95nh6epmh c5kave 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 ax u3rslub .oo za14*.5;mhvjtngular momentum of a system to be consta3r.5 v t.bu sajomhux1 l4*;oznt?

  01.27: A spinning ice skater can increase his rate of e .zpzp*t( 9rxrotation by bringing his arms and free leg ctzpez9 pr*x(. loser to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment oj(fpc14ny-k)mx j /nqf 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 inel b4wh p/okf.lq7n1,3)b xtbp7u;a qortia 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, movesydfez 82 ,f9,yeoln, y in a circle on a horizontal frictionless table as shown. As the string is ,8 fozyelnefd ,92y, ypulled very 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 pivoted at one end.-tok,rc yy ;g1 Thytgk1y-ro c ,;e rod has 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 and r)q+q bs7 h n-z9 -sj+phff0yadadius R is rotating on a fixed, frictionless platform with constant angular speed ω0 about a fixed axis through its center. A9bq dn)h+z fpys--qjsfh7+0a 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 disks at equilibrium?