13.47: Which one of the following choices best represents g**i:u y+jk.ra5hkatthe magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotation about its axi+j5r.guy*h:* iak taks?

  17.37: Which one of the ,gt-j, s jp3pn-jr qh2following choices best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) assotjj -hg3jsp,-,nprq2ciated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at ac3q w6k,g r+tjq* )mgwedwg* + constant speed of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s angular momentum calcuw+g+*wgm3wgqtrkc )*qj,6 delated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She appliesquybm)u3 e9u(i my,n su9.dw l50c:w k 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 wheel while it is slowing to rest9c .:qsui3)yybuwed5u mm 90 l(,wukn from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. Eac,m ha,mn+h5s1 fo7tps h sphere is rotating about a fixed axis through a diameter. The rot osphs,h1 57mt+,nafm ational 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 saex9c eg-*b ojn2+x k1ceqq-6pme material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to th 2 +gxnjq 1po-eb-6*qecke9cx e 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 thezk9ar ex 01on8wt c-7g angular momentum of a system to be constan79ew8 cr0z tg -onakx1t?

  01.27: A spinning ice skater can increase his rate of rotation by bringinn etx 4b5b/cu5g his arms and free leg closer to his body. How does this procedurbcnb t/ 4x5ue5e affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skatez6db)qu055 *qhpjg ez()r /;8nuvkufnh3h kw r has a 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 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 o znq,/)a j ;sfmhxnd3tk f*:/naqmn 51f 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, mo2c y2d. pava0yb0 8fdbk vwq,ro8m8u 0ves in a circle 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 for an observer measuring from the hole in the tabawb08 8 pky u8vq 00 arbo2dm2dyf,v.cle?

  08.40: A point particle of mass m collides with a thin rod pivoted at one end. a-ret 0;ob7il stlzqu2 s708o The rod has mass M=2m, length L , and moment of 7ouslq s e b-tl87a00t; ozi2rinertia $I=\frac{1}{3}ML^{2}$ . 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 Mlg(l4n,0vktjx:8e7 ae0 g7 kdom f1za and radius R is rotating on a fixed, frictionless platform with constant angular speed ω0 4k:omx7 (d f,tv8j1gle lkazgna0e07 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 disks at equilibrium?