13.47: Which one of the following choices best represents the magnitudhk)ef9smh) gmnq+3n dba:1g +e of the angular momentum of the Earth (expressed in base MKS units) associataqme 9kn+fh:h31 gb+ g )smdn)ed with its rotation about its axis?

  17.37: Which one of the following choices best l5+x-squ kzx-approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated w-z5lk u-+xsx qith its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant s39fntd r+do7 sh hp17cpeed 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 or7 n9cddfh1p rh3ot+7s igin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due ybt cn2g/q 1u5South. She applies the 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 direction of the angular acceleration of the bicycle’s front qynbu 1/c52 gtwheel while it is slowing to rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and8dc9er -bu k-kio,*as0gnj+ l 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies9ngcr+lb0 a - kk*8 ijoe-dus, 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 mad,pgmo s mvvb)3)y*gd/ b4 z4dve of the same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating aboug,vgm4 /o3dpbs*vvz)b4d m y)t 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 must be met for tz:u*y d1x0 vei0+*a s hwlmq8she angular momentum of a system to be constant*xuq0 eys0l*wds 1 m:i zvh+a8?

  01.27: A spinning ice skater can increau)1g5 m1vqa7o qeby9 mse 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 ki y mga1beq7u)95v1 qomnetic energy?

  03.32: A figure skater has a mom-/ozd j, 9f4e 8f7jvbprna*bient 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 has a moment of inertia00p.s, iauw jw 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 cir6f: fgyx- g 38bl s:rrmbr(v6lcle 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 fo:-( xrl8 6b:gf gvr3lmry b6sfr an observer measuring from the hole in the table?

  08.40: A point particle of mass m collides with a thin rod pivol(8lv 1g* rnt+c n :j/gwz,mb8a*wa wjted at one end. The rod has mass M=2m, length L , a (gcw8n+g * 1ajzjr/mwln t ,bv8w*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 mubgtgudvyp 7*5b; ) *bass 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 iv by gb ;)*b7pdgtu5*us established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?