13.47: Which one of the following choices bestpao yy-wxwhy0a 5zv9 *5z6 g8p represents the magnitude of the angular momentum of the Earth (expressed in base MKS units) associated withy0ywgpp vxa-5a zhy 6z *ow589 its rotation about its axis?

  17.37: Which one of the following choices best vht,ri gzbtzb0*7z0x 20+ lcj-e lz6iapproximates the magnitude of the Earth’s angular momentum (expressed in base MKS units) associated with its orbit thc0g-bxt+zr6bile0v iz* z,z2 l0 7jaround the Sun?

  11.40: A 2.0 kg particle travels at a constant speed of 5.0 m/s along th +8;ytp vmr9a 25isrere line shown in the figure. What is the magnitude of the particle’s angular momentum calculated from the8;ivpt se2yr +m95ar r origin( unit: $kg.m^{2}/s$)?

  11.35: Mary rides her bsv .l ):cvqz4ricycle directed due South. She applies the brakes quickly bringing the bicycle to rest with the wheels rolling without slipping on the g:.c) 4zvsr qvlround. 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 knvzyf cz 0 b7/esb,(1have radii R and 2R. Each sphere is rotating about a fixed axis through a diameter. The rota y s0nvb/zb,ckz(f17 etional 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 of the same mateteudso*o38g ,a s/s j;rial. One disk has radius R 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 kinetidta*8e,/uj;os3s sgo c 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 systwrxsby1y55w:co qk2*jxuh 5;em to be cons q y55jbc1yx2 oxkr wswh:u;5*tant?

  01.27: A spinning ice skater can increase his n6ip(hhdai4- 0- ( zmzl mme(krate of rotation by bringing his arms and free leg closer to his body. How does this procedure a-p a-(h(e kdi0nzm ( 6mmilh4zffect the skater's rotational momentum and kinetic energy?

  03.32: A figure skater has a moment rq28233itpp pmn)dm kof 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 skate c4wgckw (5wcmwee5i)8e z9n lc9v(t4 r 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 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 h/g (f b*b3vi,nmp 2xvon a horizontal frictionless table as shown. As the string is pulled v x/ b2h,3mf(*bvi gpvnery 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 enhc+g35bdff wt+h r2 3ud. The rod has mass M=2m, length L , and moment+gbffwc3t3ru+2 hd5h 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 radius R is rotating on a fixed, fr/9j+t 0ydkucb6i z:tyictionless 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 same rate. What is the angular speed of the disks a t y/c0+9ukz6ijdy :btt equilibrium?