13.47: Which one of the following choices kr08 9s(pa ac.hsv+dx best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotation about itssp90svch8r(k d.x+aa axis?

  17.37: Which one of the following choices best approximates the m2vuj)j +fa l(fn9l/ wmagnitude of the Earth’s angular momentum (expressed in base MKS units) associated with its orbit +ff9l)nwu2aj j(ml v/around the Sun?

  11.40: A 2.0 kg particle travels at a con)ovxz ) fppnmz;y6p6 4stant speed of 5.0 m/s along the line shown in the figure. What is the magn)6 z64myzpop; xnpvf)itude 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 quar:g3zhjdf 69 l pyom 3n:2s 2maoso5(ickly 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 l6jm29or3a:s (p2s3 d gmfzaoy h:on 5acceleration of the bicycle’s front wheel while it is slowing to rest from Mary’s point of view?

  03.41: Two uniform spheres of ma6vj buyb8t2olrr:6( s l/uw+ jss 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. What ivo8( +b6rt wjusrbl6/jl2:uy s 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 mxnc( 9ptx7ho 2ade of the same material. One disk has radius R while the other disk has radiut9ohc(nxx27 p s 2R. Both disks are rotating about 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 mustyvcfow(h oj8 7zt(/5 x be met for the angular momentum of a system to be cons8( 5v oh/7wxzyo( tfcjtant?

  01.27: A spinning ice skater can increase his rate of rotation by bringing t8hl pez..(av/; w qzbm9 acc)his arms and free leg closer to his body. How does this procedure affect the skater's 89z(; act b qvce zlha)/pwm..rotational momentum and kinetic energy?

  03.32: A figure skater has a moment of i 5 9 n8r x3qre.fe exn,gwygtpmh63,k-nertia 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 wz( +,r-hht3-b+1jsjr nfihi 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 circle on a elj-1tju/x0 p horizontal frictionless table as shown. As the string is pulled very slowly through1tj/p xuel-j0 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 l -vqc5yoa(z3h kly;v* fq,; y81hjozof mass m collides with a thin rod pivoted at one end. The rod has mass M=2m, length L , anv o*qyz ; v8zok13,5-yfchjqy(l lha;d 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 radius R is rotating on a fix j6jrfo2sh((teq*: gzed, 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 angu2 zeo *j:qtsf6h jr((glar speed of the disks at equilibrium?