13.47: Which one of the following choi-0 hadeoa*uwi5rb/9 oces best represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) aa *uw5ab -ooi/90he drssociated with its rotation about its axis?

  17.37: Which one of the following choices bes dgqx : zy-ve-utq2o:3t approximates the magnitude of the Eart -qo:yv2dxz-eqtu3g : h’s angular momentum (expressed in base MKS units) associated with its orbit around the Sun?

  11.40: A 2.0 kg particle travels at a constant spe*v jnjxh0b4y:j5r*,o7 t lk cyed of 5.0 m/s along the line shown in ,x7btj 0ocklrjj: 5y*4 hnyv*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 a9 bs2v mp/2yabicycle directed due South. She applies the brakes quickly bringing the bicycle to rest with the wheels rolling mbap/9av2s 2ywithout 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 rest from Mary’s point of view?

  03.41: Two uniform spheres of mass M have radii R and 2R. ,gmkc7w 26mgogi x ho8qp4)i*Each sphere is rotating about a fixed axis through a diameter. The rotational kinetic energies of the spheres aghgi )o4qmp m8o6xik ,cwg2 *7re 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 same material. One disk has radius 6po t 1;hw,mwpR while the other disk has radius 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 ano6w;1 ppwtmh, gular momentum of the disks $\frac{L_{2R}}{L_R}$

  17.24: What condition must be met for the angular momentum of a system i,tl -u2vr3ifc/u4c uto be consta2uic3ufiu- 4, tl vrc/nt?

  01.27: A spinning ice skater can increase his rate of rotat)fk iw jr)2 6+q*gmgltion by bringing his arms and free leg closer to his body. How does this procedure affect the s*)kf2 g wiq6tg +jlmr)kater's rotational momentum and kinetic energy?

  03.32: A figure skateyw 4 b.v1/wigtr 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 momen5x afor5 ) xg(u4,;s s75iomz dfhaw4tt 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 horizoxlf b*g( :gqb7l9:gdnntal frictionless table as shown. As the strib: l(l fdxgq7 *bn:g9gng 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 table?

  08.40: A point particle of mass m collides with a thin rod pivoted at one en )m yi ;mhaq81eh+ehhl8okfq5: h)-xa d. The rhl) +hq-:ih 1yqm oaa 8em8;)f kh5exhod has 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 aw03gl wn gofvsa2+)c)nd radius R is rotating on a fixed, frictionless platform with 0) ls2ng cgv+w3)f oawconstant 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 angular speed of the disks at equilibrium?