13.47: Which one of the following choiceryzwbxwj( *: r t/9( deqx.p*ts best represents the magnitude of the angular momentum of the Earth jtzwxr9pd*ex/: wy* ( .bq(r t(expressed in base MKS units) associated with its rotation about its axis?

  17.37: Which one of the following choices best k(i k:id, f)jkzqg8;jc6 g t)f1dzic6approximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated with its orbit tcgi :g,k d6kijzicf;kf)8) (qj1 6dz around the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along thez (i,l4(8vv7r nfoevdhvq 5 b+;i, gnu line shown in the figure. What is the magni+vhr f7(vvbouel,z iiqg854d( v; ,nntude 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 yd1xjolt:2n dj0;k-r v 8 syx7brakes 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 rest from M o;-vstrxy ly k02d:j71j8dxn ary’s point of view?

  03.41: Two uniform spheres of mastz +b7libk62e (qls99u z aq6ds M have radii R and 2R. Each sphere is rotating about a fixed axis through a diameter. The rotational kinetii6a7+ s9qzbq tz(d62 lbk9ue lc 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 same material. One disk has radi:j v dk0-d/ dj7uz/bx,kdz0isus R while the other disk has radius 2R. Both disks are rotating about a f0k0d7bju :/s,j/ dd vkzxd -izixed axis 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 bu j ;kq0l)2upuop 4 y5qo-q:rde met for the angular momentum of a system to be conp ou;0du2r4jpq :luo-5kqyq) stant?

  01.27: A spinning ice skater can increase his rate of rotation by brso an89 zc:,ls3f -; hch-mrukinging his arms and free leg closer to his body. How does this procedure affect the skater's rotational momentuur:sz,almf -; 9-scckh ho83nm and kinetic energy?

  03.32: A figure skater has a moment of inertia + 8.uo2-w;i wwpeirqqof $5.0 kg.m{2}$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 inertzw*27 (dn4 n2xeqht k.2yvl dnia 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 ci 2yivz,-ifzc0,a*w mi v*ycb5rcle on a horizontal frictionless avb* *-i zi, 2zy5v0cyfw,mc itable 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 cc:geutoo.6 /d6xss *tollides with a thin rod pivoted at one end. The rod has mass M=2m, le o6 s/6t:d.cs* oguetxngth 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 ma)w g5 v4wo nt *brmf27c;ap7spfle52fss 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 radib) 4mf so eacpw7tnp2w ;5fr 275l*vfgus 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?