13.47: Which one of the following choices best represents the magndhl.c(p+c56/ q:kqeg;vyzb nitude of the angular momentum of the Earth (expressed in base MKS units) associated with its rotation about vz/qlkqn+y.c h5b;6 edg p(c: its axis?

  17.37: Which one of the folind1nv4/gy jq71v6 tz gn;/l j .rib j2w(ltv9lowing choices best approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated with its orbit aro17n/.61 bqr4y j ljzw2 9vn tl(vd/igjv;t ingund the Sun?

  11.40: A 2.0 kg particle travels at a constan/1ruumh *7z9t wfinz83u-khy ,wwl 8e t speed of 5.0 m/s along the line shown in the figure. What is the magnitude of the particle’s anguyztzh98w-k mru n8u37 fi,*huw/we l 1lar momentum calculated from the origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bicycle directed due South. She applies the brakes qui;d (wl3: 0 wkimdiksz-ckly 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 rest from Mary’s point of view?wm(kd;d3s :-kw 0zli i

  03.41: Two uniform spheres of mass M have radii R and 2R. Each sphere is rn4 8,a2m*kxhq6bcjp v 5 k0azsotating about a fixed axis through azb 8j2kvpq6kchx,mn a04s 5 a* diameter. The rotational 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 u+)0eh 9q tashof the same material. One disk has radius R while the other disk has radius 2R. Both disks are rotating about a fixed axis sqeth)h+90au 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 the angul ;44noil h/ mobcz)zir3-z,j1)v vulhar momentum of a system to be con3/4v)o4,z-) lzlmunz; vc hor bj1ihi stant?

  01.27: A spinning ice skater can increase his rv wu7)qh 10:vqcs4e2naud: fpate of rotation by bringing his arms and free leg closer to his body. How does this procedure affect the skater qu4)q f:dvnw1 :ua7 0h2cvpse's rotational momentum and kinetic energy?

  03.32: A figure skater has a mom zrv3ten4*4 q+wr: f0tej7bk sent 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 ha9q 9i rzlma q60gnta,7s 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 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 hoavwtl-g z5debc .,58b/:tev5/gu0 sliwy c)urizontal frictionlzi5ub c/c)weyv8/w 5:de g -bt0t.av5sllg,uess 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 table?

  08.40: A point particle of mass m collides with a thin rp6y b x u9- )fads.4bnzogu-lk;i:;ln od pivoted at one end. The rod has mass M=2m, length L , and moment ok-6ynbs;pl4 of x z;)d.agni-lbu: 9uf 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 wi*cecre 37(9m,npaxhvnp . 4np th mass 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 equile n ppnh,x3e* (9c4.mc7 pravnibrium is established, the disks are spinning at the same rate. What is the angular speed of the disks at equilibrium?