13.47: Which one of the following choicea0;etu8r +euu s best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotau0 8eu+ ea;ruttion about its axis?

  17.37: Which one of the following choices best approximates alu3 .gc724fzq5d uqithe magnitude of the Earth’s angular momentum (expressed in base MKS units) associated7z5f d4u2qgcilqa. 3u with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5. xqeou0ymqy. .y.ue o5pu6x9(0 m/s along the line shown in the figure. What is tmy. 06uq9yox5e. xpuy.qu e( ohe magnitude 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 quicklya5vu ;o g ct;z,yb :x.i)pt2vs bringing the bicycle to rest with the wheels rolling without slipping cbvpsxg .a,o:y;2vzu5) t;it 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 rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. yc zz) a5/imrp5m9/kl Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies y5zicr9ma) /z/kp5m l 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 ar68- n v6o/xlkjxf2afbal 74z be made of the same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular t8ajn6zf7/xk blbx46f a v2lo-o 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 angular momentum of a system to be.5tum430ep. lr zzw ma cons epzarzmm4 uw.t3 5l0.tant?

  01.27: A spinning ice skater can increase his ybgza rw*0td3n (706rm:lu bh rate of rotation by bringing his arms and free leg cbryzw n6g7(l 3buhm:0 a0*rd tloser to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater hasmo(j6-h;8mo dmrq*)e t-r lix 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 of inertia of lu+ 7.(8h5vg ouna(58vtsnw3yvj rkj$5.0 kg.m^{2}$ 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 circ.)x,of itc1en, 3jvnqr 9j9atle on a horizontal frictionless table as shown. As the string is pulled very slowly through a small hole in the table, which f9ij9 j,.,xt3ae n)tcq1vor nof the following is correct for an observer measuring from the hole in the table?

  08.40: A point partice3nbgu gsa q:*zy64qkmg0./ m4:bfl wle of mass m collides with a thin rod pivoted at one end. The rod has mass M=2m, length L , and moment of inertikqe:mw34y. /fql*b:0g6gg4banuzsm a $I=\frac{1}{3}ML^{2}$ . 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 az+omysiy / sw,j9) u,wnd 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 is established, the disks are spinning at the s,s)wiyz+/s mjw , o9yuame rate. What is the angular speed of the disks at equilibrium?