13.47: Which one of the foldl mjw6mb1(oub2:*f clowing choices best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotation about its ax: b2 ud1w(jm* b6lcmofis?

  17.37: Which one of the following choices best approximates the magneqp5b9udwj4 w+/s3rg , lts+oitude of the Earth’s angu,4o3 srdw/+9pge qjut+ w bs5llar momentum (expressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed ofn8nahxft5 uq1v2bdn52 4s s*w 5.0 m/s along the line shob1an 5*v2 fnd2wh s8tn4uxs5 qwn in the figure. What is the 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 nov.m*jns-0 pquickly 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 fronspnjv* m-0.o nt 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 spfrb0lm8 d6 mtuf4;l.w here is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres are identical. What is m6fr ;t8. df umw4lb0lthe 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 k c * ,b9xkiu:ok30r9zjxcr0smaterial. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis perpendicular to the disk, throi cbxzru3 k 0*xc0j:ok9skr,9 ugh 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 jqif4 f3 qz93lbe cons39 zf4fl3iqqj tant?

  01.27: A spinning ice skater can incjtzku0ab;u4 4 0kzas6yma93 zg ew6q;rease his rate of rotation by bringing his arm6 0 ;9 e maasb kzuqa;kw46yt0jz4uzg3s and free leg closer to his body. How does this procedure affect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a mow9vf( g+a6 ej5ffiron (dh84ivf- .xjment 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)g8h 2uqfw7h fjl2jf lowy-j/k 9 7ui: 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 hori07eo cxhp bnc1bx7t :8zontal frictionless table as shown. As the string isxc: t0eb7xn 18c bph7o 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 table?

  08.40: A point particle of mass m collides with a thin r35 a2iiyzcl*lod pivoted at one end. The rod i*c5l2 iylz3ahas 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 radiusa2p2 lwca y((i 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 spinni(w aic(y2lp2ang at the same rate. What is the angular speed of the disks at equilibrium?